Source: https://www.rcptm.com/about/personnel/jaromir-krepelka/
Timestamp: 2019-04-21 12:18:14+00:00

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Design of thin film optical systems, software equipment for optical instruments, numerical methods and scientific programming, statistical and coherent properties of radiation, nolinear and quantum optics, algoritmisation and computer modelling of physical processes.
University lecturer (optics of thin films, numerical methods and programming), bachelor, master and doctoral thesis supervisor, review of master, doctoral, habilitational thesis, scientific articles and publications, participation in research projects and scientific seminars and conferences.
Quantum correlations between two neighboring atoms are studied. It is assumed that one atomic system comprises a single auto-ionizing level and the other atom does not contain any auto-ionizing level. The excitation of both atoms is achieved by the interaction with the same mode of the quantized field. It is shown that the long-time behavior of two atoms exhibits quantum correlations even when the atoms do not interact directly. This can be shown using the optical excitation of the neighboring atom. Also a measure of entanglement of two atoms can be applied after reduction of the continuum to two levels.
A two-mode Bose–Einstein condensate (BEC) prepared in a Fock state initially evolves due to the coupling of modes. The time evolution of nonclassical properties exhibits that inter-mode entanglement, single-mode and higher order antibunching are present. A four-mode BEC is considered with the initial minimum-energy Bloch states, and the nonclassical behaviour is confirmed.
A simple feedback system may be based on a beam splitter, a homodyne detection and a modulator. A single-mode treatment leads to violations of the commutation relations for an in-loop mode of the system. The lowering of noise of one quadrature has been labelled ‘squashing’. Violations of the commutation relations do not occur when one does not replace the c-number parameter of displacement in the modulator with an operator, even though the latter should be directly proportional to a quadrature measurement behind the beam splitter. This outcome is not a quantum-mechanical expectation value, but a random variable. In this framework, we analyse this system and another one, where the beam-splitter transmittance is modulated through a feedback loop. To predict the squeezing of a quadrature, it is necessary to realize a consistent quantization of the feedback circuit.
Joint photon-number and integrated-intensity probability distributions are used for description of time evolution of optical parametric process including processes of frequency conversion, parametric amplification and subharmonic generation taking into account losses and noise. Using these tools quantum entanglement of modes based on the separability criteria is considered and nonclassical properties of the process under discussion are demonstrated by means of conditional probability distributions and their Fano factors, difference-number probability distributions, quantum oscillations, squeezing of vacuum fluctuations and negative values of the joint wave probability quasidistributions in time evolution. Sub-Poissonian and sub-shot-noise properties are illustrated for spontaneous process and stimulated process by means of chaotic light and squeezed light. Also the multimode processes are investigated in the spirit of the Mandel–Rice photocount formula. The description is applied to interpretation of experimental data.
The light initially prepared in a coherent state runs the stimulated and spontaneous Raman processes in a second-order nonlinear medium. Using analytical expressions of field operators for the light modes, we determine the quantum statistical properties of the modes in the stimulated and spontaneous Raman processes. By a choice of phase, we obtain a boson-pair property correlating the pump and vibration modes and such a property correlating the pump and anti-Stokes modes. The Stokes and vibration modes exhibit the boson-pair property for all initial phase differences between the pump mode and the other ones. In the spontaneous Raman process only the Stokes and vibration modes show such a property.
V. Perinova, A. Luks, J. Krepelka, and J. Perina Jr., “Quantum correlation and entanglement between an ionizing system and a neighboring atom interacting directly and via a quantized field,” PHYSICAL REVIEW A, vol. 90, iss. 3, 2014.
J. Perina and J. Krepelka, “Joint photon and wave statistics in nonlinear optical couplers,” OPTICS COMMUNICATIONS, vol. 326, pp. 10-19, 2014.
A. Pathak, J. Krepelka, and J. Perina, “Nonclassicality in Raman scattering: Quantum entanglement, squeezing of vacuum fluctuations, sub-shot noise and joint photon-phonon number and integrated-intensity distributions,” PHYSICS LETTERS A, vol. 377, iss. 38, pp. 2692-2701, 2013.
J. Perina and J. Krepelka, “Quantum statistics of optical parametric processes with squeezed reservoirs,” OPTICS COMMUNICATIONS, vol. 308, pp. 274-281, 2013.
V. Perinova, A. Luks, and J. Krepelka, “Dynamics of nonclassical properties of two- and four-mode Bose-Einstein condensates,” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 46, iss. 19, 2013.
V. Perinova, A. Luks, and J. Krepelka, “An alternative to the quantization of electro-optic feedback,” PHYSICA SCRIPTA, vol. T147, 2012.
A. Luks, V. Perinova, and J. Krepelka, “Surface effect on spontaneous parametric down-conversion,” in 18TH CZECH-POLISH-SLOVAK OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2012.
L. Stanke, J. Krepelka, M. Palatka, P. Schovanek, and M. Hrabovsky, “Application of optical elements for temporal and spatial transformation of ultra-short and ultra-intense light pulses,” in 18TH CZECH-POLISH-SLOVAK OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2012.
J. Perina and J. Krepelka, “Joint probability distributions and entanglement in optical parametric processes,” OPTICS COMMUNICATIONS, vol. 284, iss. 20, pp. 4941-4950, 2011.
B. Sen, V. Perinova, A. Luks, J. Perina, and J. Krepelka, “Sub-shot noise photon-number correlation in stimulated and spontaneous Raman processes,” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 44, iss. 10, 2011.
V. Perinova, A. Luks, and J. Krepelka, “A beam splitter with second-order nonlinearity modelled as a nonlinear coupler,” PHYSICA SCRIPTA, vol. T143, 2011.
V. Perinova, A. Luks, and J. Krepelka, “Quantum statistics and entanglement in a Raman process,” JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, vol. 44, iss. 3, 2011.
A. Luks, V. Perinova, J. Perina Jr., J. Krepelka, and W. Leonski, “Photoelectron spectra for an atom with one autoionizing level that interacts with a neighbor,” in 17TH SLOVAK-CZECH-POLISH OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2010.
J. Perina and J. Krepelka, “Entanglement in optical parametric down-conversion with losses and noise,” OPTICS COMMUNICATIONS, vol. 282, iss. 19, pp. 3918-3923, 2009.
A. Dejneka, I. Aulika, V. Trepakov, J. Krepelka, L. Jastrabik, Z. Hubicka, and A. Lynnyk, “Spectroscopic ellipsometry applied to phase transitions in solids: possibilities and limitations,” OPTICS EXPRESS, vol. 17, iss. 16, pp. 14322-14338, 2009.
S. M. Abdalla, J. Perina, and J. Krepelka, “Non-classical effect of quantum non-demolition measurement in presence of parametric amplification,” OPTICS COMMUNICATIONS, vol. 282, iss. 14, pp. 2878-2888, 2009.
J. Perina, J. Krepelka, J. Perina Jr., M. Bondani, A. Allevi, and A. Andreoni, “Correlations in photon-numbers and integrated intensities in parametric processes involving three optical fields,” EUROPEAN PHYSICAL JOURNAL D, vol. 53, iss. 3, pp. 373-382, 2009.
J. Perina and J. Krepelka, “Joint probability distributions of stimulated parametric down-conversion for controllable nonclassical fluctuations,” OPTICS COMMUNICATIONS, vol. 281, iss. 18, pp. 4705-4711, 2008.
M. Bondani, A. Allevi, G. Zambra, A. Andreoni, J. Perina, J. Krepelka, and J. Perina Jr., “Experimental demonstration of sub-shot-noise intensity correlations in an intense twin beam,” EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, vol. 160, pp. 33-41, 2008.
J. Perina and J. Krepelka, “Joint distributions of multimode stimulated parametric down-conversion and controllable nonclassical effects,” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 41, iss. 8, 2008.
J. Perina Jr., J. Perina, O. Haderka, J. Krepelka, M. Hamar, V. Michalek, M. Bondani, A. Allevi, and A. Andreoni, “Photocount measurements as a tool for investigation of non-classical properties of twin beams,” in 16TH POLISH-SLOVAK-CZECH OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2008.
J. Perina, J. Krepelka, J. Perina Jr., M. Bondani, A. Allevi, and A. Andreoni, “Experimental joint signal-idler quasidistributions and photon-number statistics for mesoscopic twin beams,” PHYSICAL REVIEW A, vol. 76, iss. 4, 2007.
M. Bondani, A. Allevi, G. Zambra, M. G. A. Paris, A. Adreoni, J. Perina, J. Krepelka, and J. Perina Jr., “Nonclassical mesoscopic twin-beam of light – art. no. 671004,” in QUANTUM COMMUNICATIONS AND QUANTUM IMAGING V, 2007, p. 71004.
J. Perina and J. Krepelka, “Multimode description of stimulated parametric down-conversion,” OPTICS COMMUNICATIONS, vol. 265, iss. 2, pp. 632-641, 2006.
M. Abdalla, J. Perina, and J. Krepelka, “Statistical properties of multiphoton time-dependent three-boson coupled oscillators,” JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, vol. 23, iss. 6, pp. 1146-1160, 2006.
V. Perinova, A. Luks, and J. Krepelka, “States of the optimum Fisher measure of information for quantum interferometry,” PHYSICAL REVIEW A, vol. 73, iss. 6, 2006.
V. Perinova, A. Luks, and J. Krepelka, “Linear coupling, loss and gain of counterpropagating beams,” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 39, iss. 9, pp. 2267-2284, 2006.
S. M. Abdalla, J. Krepelka, and J. Perina, “Effect of Kerr-like medium on a two-level atom in interaction with bimodal oscillators,” JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 39, iss. 7, pp. 1563-1577, 2006.
J. Perina and J. Krepelka, “Joint probability distributions for optical parametric down-conversion,” JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS, vol. 1, 2006.
J. Perina and J. Krepelka, “Multimode description of spontaneous parametric down-conversion,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 7, iss. 9, pp. 246-252, 2005.
A. Luks, V. Perinova, and J. Krepelka, “Measurements that little disturb the switching of light,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 6, iss. 6, SI, p. S549-S555, 2004.
I. Lesso, J. Futo, J. Krepelka, B. Pandula, and A. Mockovciakova, “Control with acoustic method of disintegration of rocks by rotary drilling,” METALURGIJA, vol. 43, iss. 2, pp. 119-121, 2004.
V. Perinova, A. Luks, and J. Krepelka, “Quantum and semiclassical models for a random laser,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 6, iss. 3, SI, p. S104-S110, 2004.
V. Perinova, A. Luks, and J. Krepelka, “From `coupled harmonic oscillators’ back to interacting fields,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 5, iss. 3, pp. 254-261, 2003.
K. Thun, J. Perina, and J. Krepelka, “Quantum Zeno effect in Raman scattering,” in 13TH POLISH-CZECH-SLOVAK CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2003, pp. 1-6.
K. Thun, J. Perina, and J. Krepelka, “Quantum Zeno effect in Raman scattering,” PHYSICS LETTERS A, vol. 299, iss. 1, pp. 19-30, 2002.
V. Perinova, A. Luks, and J. Krepelka, “Doubly parametrically amplifying “coupler” in spontaneous regime,” in FIRST INTERNATIONAL WORKSHOP ON CLASSICAL AND QUANTUM INTERFERENCE, 2002, pp. 121-129.
P. Schovanek, J. Krepelka, M. Hrabovsky, M. Palatka, M. Vlcek, L. Soukup, L. Jastrabik, J. Ridky, J. Grygar, and M. Bohacova, “Optical filters designed for the fluorescence detector of the AUGER project with transmittance in the range 300 nm-420 nm,” in 12TH CZECH-SLOVAK-POLISH OPTICAL CONFERENCE ON WAVE AND QUANTUM ASPECTS OF CONTEMPORARY OPTICS, 2001, pp. 213-216.
V. Perinova, A. Luks, J. Krepelka, and V. Jelinek, “Number-phase properties of correlated chaotic fields,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 2, iss. 6, pp. 746-757, 2000.
A. Luks, V. Perinova, and J. Krepelka, “Continuous measurement of photon number with double registration of counts,” PHYSICAL REVIEW A, vol. 62, iss. 3, p. art. no.-033806, 2000.
V. Perinova, A. Luks, and J. Krepelka, “Intelligent states in SU(2) and SU(1,1) interferometry,” JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, vol. 2, iss. 2, pp. 81-89, 2000.
J. Fiurasek, J. Krepelka, and J. Perina, “Quantum-phase properties of the Kerr couplers,” OPTICS COMMUNICATIONS, vol. 167, iss. 1-6, pp. 115-124, 1999.
J. Fiurasek, J. Krepelka, and J. Perina, “Quantum phase properties of Kerr couplers,” ACTA PHYSICA SLOVACA, vol. 49, iss. 4, pp. 689-694, 1999.
V. Perinova, A. Luks, and J. Krepelka, “Quasidistributions for noncommuting cosine and sine operators,” EUROPEAN PHYSICAL JOURNAL D, vol. 5, iss. 3, pp. 417-432, 1999.
V. Perinova, A. Luks, and J. Krepelka, “Quantum phase properties impeded second-harmonic generation,” QUANTUM AND SEMICLASSICAL OPTICS, vol. 10, iss. 2, pp. 375-408, 1998.
V. Perinova, A. Luks, and J. Krepelka, “Quasiprobability distribution for the photon-number operator and quadrature operator in a coherent state,” QUANTUM AND SEMICLASSICAL OPTICS, vol. 9, iss. 6, pp. 995-1016, 1997.
V. Perinova, A. Luks, and J. Krepelka, “Preferred values and phase dispersions of any order for l-photon Kerr states,” QUANTUM AND SEMICLASSICAL OPTICS, vol. 9, iss. 3, pp. 465-488, 1997.
V. Perinova, A. Luks, and J. Krepelka, “Conditional generation of special states using continuous measurements,” PHYSICAL REVIEW A, vol. 54, iss. 1, pp. 821-842, 1996.
V. Perinova, A. Luks, J. Krepelka, C. Sibilia, and M. Bertolotti, “Quantum phase properties of a cubically behaved second-order nonlinear medium,” JOURNAL OF MODERN OPTICS, vol. 43, iss. 1, pp. 13-38, 1996.
V. Perinova, A. Luks, and J. Krepelka, “Ideal and destructive state reductions of correlated light fields and the continuous measurement of photon number,” PHYSICAL REVIEW A, vol. 53, iss. 1, pp. 525-542, 1996.
A. LUKS, V. PERINOVA, and J. KREPELKA, “STATE REDUCTION FOR CORRELATED PHOTONS AND EIGENSTATES OF UNITARILY AND NON-UNITARILY DISPLACED NUMBER OPERATOR,” JOURNAL OF MODERN OPTICS, vol. 41, iss. 12, pp. 2325-2341, 1994.
V. PERINOVA, A. LUKS, and J. KREPELKA, “QUANTUM STATISTICS OF NUMBER-QUADRATURE MINIMUM UNCERTAINTY STATES,” LASER PHYSICS, vol. 4, iss. 4, pp. 717-725, 1994.
A. LUKS, V. PERINOVA, and J. KREPELKA, “ROTATION ANGLE, PHASES OF OSCILLATORS WITH DEFINITE CIRCULAR POLARIZATIONS, AND THE COMPOSITE IDEAL PHASE OPERATOR,” PHYSICAL REVIEW A, vol. 50, iss. 1, pp. 818-830, 1994.
V. PERINOVA and J. KREPELKA, “FREE AND DISSIPATIVE EVOLUTION OF SQUEEZED AND DISPLACED NUMBER STATES IN THE 3RD-ORDER NONLINEAR OSCILLATOR,” PHYSICAL REVIEW A, vol. 48, iss. 5, pp. 3881-3889, 1993.
J. KREPELKA, “REVERSIBILITY THEOREM FOR ANISOTROPIC STRATIFIED MEDIUM,” JOURNAL OF MODERN OPTICS, vol. 40, iss. 8, pp. 1581-1586, 1993.
J. PERINA and J. KREPELKA, “PHOTON STATISTICS OF 4-WAVE-MIXING OF NONCLASSICAL LIGHT WITH PUMP DEPLETION,” in 16TH CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS : OPTICS AS A KEY TO HIGH TECHNOLOGY, PTS 1 AND 2, 1993, pp. 78-79.
V. PERINOVA and J. KREPELKA, “THE DISSIPATIVE 3RD-ORDER NONLINEAR OSCILLATOR WITH INITIAL SQUEEZED AND DISPLACED NUMBER STATES,” in 16TH CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS : OPTICS AS A KEY TO HIGH TECHNOLOGY, PTS 1 AND 2, 1993, pp. 82-83.
J. PERINA and J. KREPELKA, “FORWARD AND BACKWARD 4-WAVE-MIXING OF NONCLASSICAL LIGHT WITH PUMP DEPLETION,” JOURNAL OF MODERN OPTICS, vol. 39, iss. 12, pp. 2405-2419, 1992.
A. LUKS, V. PERINOVA, and J. KREPELKA, “SPECIAL STATES OF THE PLANE ROTATOR RELEVANT TO THE LIGHT-FIELD,” PHYSICAL REVIEW A, vol. 46, iss. 1, pp. 489-498, 1992.
M. MIKO, J. KREPELKA, and M. MELKA, “CLOTURIN – EFFECT ON ENERGY-PRODUCING PROCESSES IN EHRLICH ASCITES AND P388-MURINE LEUKEMIA-CELLS,” CELL BIOCHEMISTRY AND FUNCTION, vol. 10, iss. 2, pp. 115-122, 1992.
J. PERINA and J. KREPELKA, “QUANTUM STATISTICS OF STIMULATED RAMAN AND HYPER-RAMAN SCATTERING OF SQUEEZED LIGHT WITH PUMP DEPLETION,” JOURNAL OF MODERN OPTICS, vol. 39, iss. 5, pp. 1029-1041, 1992.
M. MIKO, J. KREPELKA, and M. NOBILIS, “9-HYDROXYBENFLURON – EFFECT ON ENERGY-YIELDING PROCESSES IN EHRLICH ASCITES AND P388 MURINE LEUKEMIA-CELLS,” ANTI-CANCER DRUGS, vol. 3, iss. 1, pp. 63-68, 1992.
S. JANTOVA, K. HORAKOVA, B. UHRIK, M. NOVOTOVA, and J. KREPELKA, “CYTOSTATIC ACTIVITY OF BENZO(C)FLUORENE DERIVATIVES UNDER INVITRO CONDITIONS,” BIOLOGIA, vol. 47, iss. 9, pp. 725-736, 1992.
A. LUKS, V. PERINOVA, and J. KREPELKA, “EXTENDED NUMBER STATE BASIS AND NUMBER-PHASE INTELLIGENT STATES OF LIGHT-FIELD .2. THE REDUCED NUMBER-SINE INTELLIGENT AND JACKIW STATES,” CZECHOSLOVAK JOURNAL OF PHYSICS, vol. 42, iss. 1, pp. 59-92, 1992.
J. KREPELKA, “MOBILIZATION OF RESEARCH POTENTIAL IN CSFR,” in PHARMACEUTICAL INDUSTRY IN EXTENDED EUROPE: INVESTMENT AND BUSINESS OPPORTUNITIES ; RESEARCH POTENTIAL ; REGULATORY ISSUES, 1992, pp. 115-120.
M. MIKO, J. KREPELKA, and M. MELKA, “EFFECTS OF BENFLURON AND ITS 2 METABOLITES ON RESPIRATORY PROCESSES IN P388 MURINE LEUKEMIA AND EHRLICH ASCITES-CELLS,” BIOCHEMICAL PHARMACOLOGY, vol. 42, iss. S, p. S214-S216, 1991.
V. PERINOVA, A. LUKS, J. KREPELKA, C. SIBILIA, and M. BERTOLOTTI, “QUANTUM STATISTICS OF LIGHT IN A LOSSLESS LINEAR COUPLER,” JOURNAL OF MODERN OPTICS, vol. 38, iss. 12, pp. 2429-2457, 1991.
C. KONAK, J. JAKES, P. STEPANEK, F. PETRAS, M. KARSKA, J. KREPELKA, and J. PERINA, “EFFECT OF MULTIPLE LIGHT-SCATTERING ON TRANSMITTED AND SCATTERED-LIGHT,” APPLIED OPTICS, vol. 30, iss. 33, pp. 4865-4871, 1991.
J. PERINA and J. KREPELKA, “STIMULATED RAMAN-SCATTERING OF SQUEEZED LIGHT WITH PUMP DEPLETION,” JOURNAL OF MODERN OPTICS, vol. 38, iss. 11, pp. 2137-2151, 1991.
J. PERINA, M. KARSKA, and J. KREPELKA, “STIMULATED RAMAN-SCATTERING OF NONCLASSICAL LIGHT BY SQUEEZED PHONONS,” ACTA PHYSICA POLONICA A, vol. 79, iss. 6, pp. 817-828, 1991.
M. MIKO, J. KREPELKA, and M. MELKA, “9-HYDROXYBENFLURON – CYTOSTATIC EFFECTS AND INHIBITION OF MACROMOLECULAR BIOSYNTHESIS IN EHRLICH ASCITES AND P388 MURINE LEUKEMIA-CELLS,” ANTI-CANCER DRUGS, vol. 2, iss. 3, pp. 289-295, 1991.
M. MIKO, J. KREPELKA, and M. MELKA, “EFFECT OF CLOTURIN ON GLYCOLYSIS AND LEVEL OF THIOL-GROUPS IN P388 AND EHRLICH ASCITES-CELLS,” BIOLOGIA, vol. 46, iss. 3, pp. 193-201, 1991.
V. PERINOVA and J. KREPELKA, “QUANTUM STATISTICS OF NONCLASSICAL RADIATION IN DISSIPATIVE FORWARD 4-WAVE MIXING .1. METHOD OF GENERALIZED SUPERPOSITION OF COHERENT AND CHAOTIC FIELDS,” PHYSICAL REVIEW A, vol. 39, iss. 8, pp. 4045-4055, 1989.
M. MIKO, J. KREPELKA, and M. MELKA, “INVITRO CYTO-TOXICITY AND MODE OF ACTION OF BENZO(C)FLUORENE DERIVATIVES,” BIOLOGIA, vol. 44, iss. 3, pp. 253-266, 1989.
M. MIKO, J. KREPELKA, and M. MELKA, “CYTOLYTIC ACTIVITIES OF BENFLURON METABOLITES AND LOSS OF TRANSPLANTABILITY,” INTERNATIONAL JOURNAL OF TISSUE REACTIONS-EXPERIMENTAL AND CLINICAL ASPECTS, vol. 11, iss. 3, pp. 143-151, 1989.
M. MIKO, J. KREPELKA, M. MELKA, and D. VAJDOVA, “PRIMARY SCREENING AND INHIBITION OF MACROMOLECULAR BIOSYNTHESIS BY BENFLURON METABOLITES INVITRO,” NEOPLASMA, vol. 36, iss. 1, pp. 91-101, 1989.
M. MIKO, J. KREPELKA, M. MELKA, and D. VAJDOVA, “EFFECTS OF BENFLURON METABOLITES ON GLYCOLYSIS AND LEVEL OF THIOL-GROUPS IN P388 AND EHRLICH ASCITES-CELLS,” NEOPLASMA, vol. 36, iss. 3, pp. 305-315, 1989.
M. MIKO, J. KREPELKA, M. MELKA, and D. VAJDOVA, “EFFECT OF BENFLURON METABOLITES ON ATP LEVEL IN TUMOR-CELLS,” NEOPLASMA, vol. 36, iss. 4, pp. 411-417, 1989.
M. MELKA, J. KREPELKA, M. MIKO, S. POKORNA, I. KEJHOVA, R. REICHLOVA, M. BEITOVA, J. GRIMOVA, A. KARGEROVA, and J. SEDIVA, “SUBSTANCES WITH ANTINEOPLASTIC ACTIVITY .96. SOME PHARMACOLOGICAL PROPERTIES AND THERAPEUTIC SYNERGISM OF 6-PURINYL-N-(2-CHLOROETHYL)THIOCARBAMATE WITH CYTOSINE-ARABINOSIDE,” NEOPLASMA, vol. 36, iss. 4, pp. 419-425, 1989.
M. MIKO, J. KREPELKA, and M. MELKA, “INHIBITION OF BIOSYNTHETIC PROCESSES IN P388 AND EHRLICH ASCITES-CELLS BY CLOTURIN,” DRUGS UNDER EXPERIMENTAL AND CLINICAL RESEARCH, vol. 14, iss. 9, pp. 575-580, 1988.
A. CERNY, J. KREPELKA, K. REZABEK, M. FRUHAUFOVA, V. PLAISNER, and J. HOLDA, “ERGOT ALKALOIDS .72. SOME DOPAMINERGICALLY ACTIVE ESTERS OF N-[(5R,8S,10R)-6-PROPYL-8-ERGOLINYL]CARBAMIC ACID WITH CANCEROGENICITY MANIFESTATIONS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 52, iss. 12, pp. 2983-2990, 1987.
M. MIKO, J. KREPELKA, and M. MELKA, “CYTOTOXICITY OF BENFLURON METABOLITES ON P388 AND EHRLICH CELLS,” EUROPEAN JOURNAL OF CANCER & CLINICAL ONCOLOGY, vol. 23, iss. 11, p. 1779, 1987.
P. SZLACHETKA, V. PERINOVA, J. KREPELKA, A. LUKS, and J. PERINA, “GENERATION OF SQUEEZED STATES,” ACTA PHYSICA POLONICA A, vol. 72, iss. 3, pp. 431-441, 1987.
A. LUKS, J. PERINA, and J. KREPELKA, “QUANTUM CORRECTIONS TO CLASSICAL-SOLUTIONS FOR 2ND HARMONIC-GENERATION,” ACTA PHYSICA POLONICA A, vol. 72, iss. 3, pp. 443-451, 1987.
J. PERINA, J. BAJER, J. KREPELKA, and Z. HRADIL, “SQUEEZING AND SUB-POISSON STATISTICS IN 3-MODE INTERACTIONS,” JOURNAL OF MODERN OPTICS, vol. 34, iss. 6-7, pp. 965-977, 1987.
J. HOLOUBEK, H. KRUG, J. KREPELKA, J. PERINA, and Z. HRADIL, “LIGHT-SCATTERING SPECKLE PATTERNS AND THEIR CORRELATION-PROPERTIES,” JOURNAL OF MODERN OPTICS, vol. 34, iss. 5, pp. 633-642, 1987.
J. KREPELKA, J. PERINA, and A. TOCKIJ, “OPTIMIZATION OF INVERSE FILTER TRANSFER-FUNCTION IN RESTORATION OF BLURRED IMAGES WITH INCOHERENT-LIGHT,” OPTIK, vol. 76, iss. 2, pp. 57-60, 1987.
J. PERINA, J. KREPELKA, R. HORAK, Z. HRADIL, and J. BAJER, “PHOTON STATISTICS OF NONCLASSICAL RADIATION IN 2ND HARMONIC-GENERATION,” CZECHOSLOVAK JOURNAL OF PHYSICS, vol. 37, iss. 10, pp. 1161-1173, 1987.
M. MIKO, J. KREPELKA, and M. MELKA, “CYTOTOXICITY OF BENFLURON METABOLITES AS A CONSEQUENCE OF INTERACTION WITH CELL-MEMBRANES,” INVESTIGATIONAL NEW DRUGS, vol. 5, iss. 1, p. 85, 1987.
J. SOUCEK, P. STOCKBAUER, M. MELKA, K. KOUBEK, V. CHUDOMEL, and J. KREPELKA, “DERIVATIVES OF BENZO(C)FLUORENE .24. CYTOSTATIC EFFECT OF BENFLURON ON HUMAN-LEUKEMIC CELLS-INVITRO,” NEOPLASMA, vol. 34, iss. 1, pp. 45-54, 1987.
M. CERNY, E. KASAFIREK, J. ROVENSKY, and J. KREPELKA, “SYNTHESIS OF BLOOD-SERUM THYMIC-FACTOR AND ITS ANALOGS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 51, iss. 12, pp. 2909-2918, 1986.
V. PERINOVA, J. KREPELKA, and J. PERINA, “PHOTON STATISTICS OF NONCLASSICAL FIELDS,” OPTICA ACTA, vol. 33, iss. 10, pp. 1263-1278, 1986.
J. KREPELKA, A. CERNY, R. KOTVA, J. VACHEK, and M. MELKA, “SUBSTANCES WITH ANTINEOPLASTIC ACTIVITY .91. SOME DERIVATIVES OF 5-(2-AMINO-6-HYDROXY-4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL)PENTANOIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 51, iss. 5, pp. 1140-1149, 1986.
Z. PERINA, M. SARSUNOVA, K. SCHMIDT, and J. KREPELKA, “PARAMETERS OF ADSORPTION CHROMATOGRAPHY .4. PARAMETERS OF ADSORPTION (TLC, HPLC) OF POTENTIAL CYTOSTATICS OF THE BENZO[C]FLUORENE-TYPE IN CORRELATION WITH THEIR BIOLOGICAL-ACTIVITY,” PHARMAZIE, vol. 41, iss. 4, pp. 236-238, 1986.
M. NEMERYUK, A. SEDOV, T. SAFONOVA, A. CERNY, and J. KREPELKA, “TRANSFORMATIONS OF SUBSTITUTED 5-AMINOPYRIMIDINES UNDER CONDITIONS OF THE DIAZOTIZATION,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 51, iss. 1, pp. 215-233, 1986.
V. PERINOVA, J. KREPELKA, J. PERINA, A. LUKS, and P. SZLACHETKA, “ENTROPY OF OPTICAL-FIELDS,” OPTICA ACTA, vol. 33, iss. 1, pp. 15-32, 1986.
M. MIKO, J. KREPELKA, and M. MELKA, “CYTOTOXICITY OF 7-DIHYDROBENFLURON ON P-388 AND EHRLICH CELLS,” EUROPEAN JOURNAL OF CANCER & CLINICAL ONCOLOGY, vol. 21, iss. 11, p. 1402, 1985.
F. SMEJKAL, D. ZELENA, J. KREPELKA, and I. VANCUROVA, “DERIVATIVES OF BENZO(C)FLUORENE .6. ANTIVIRAL AND INTERFERON-INDUCING ACTIVITIES OF 3 BENZO(C)FLUORENONE DERIVATIVES IN MICE,” ACTA VIROLOGICA, vol. 29, iss. 1, pp. 11-18, 1985.
V. FRANCOVA, S. SMOLIK, M. SCHLEHROVA, K. RAZ, A. SELECKA, Z. FRANC, M. FRUHAUFOVAAUSKOVA, K. REZABEK, I. VANCUROVA, and J. KREPELKA, “DERIVATIVES OF BENZO(C)FLUORENE .14. ABSORPTION, DISTRIBUTION AND ELIMINATION OF H-3 BENFLURONE, 5-(2-(N,N-DIMETHYLAMINO)ETHOXY)-7-OXO-7H-BENZO(C)FLUORENE HYDROCHLORIDE IN RATS AFTER ORAL AND INTRAVENOUS ADMINISTRATION,” NEOPLASMA, vol. 32, iss. 5, pp. 529-536, 1985.
J. KREPELKA, D. VLCKOVA, and M. MELKA, “SUBSTANCES WITH ANTINEOPLASTIC ACTIVITY .88. SOME 1-SUBSTITUTION DERIVATIVES OF 4-ARYL-2,3-DIHALOGENO-1-NAPHTHOLS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 49, iss. 1, pp. 110-121, 1984.
A. CERNY, J. KREPELKA, V. ZIKAN, D. VLCKOVA, J. VACHEK, J. HOLUBEK, K. REZABEK, M. FRUHAUFOVA, M. SEDA, J. CHLEBOUNOVA, and O. MARHAN, “ERGOT ALKALOIDS .70. SOME 6-SUBSTITUTED 1-[(5R,8S,10R)-8-ERGOLINYL]-3,3-DIETHYLUREAS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 49, iss. 12, pp. 2828-2836, 1984.
J. KREPELKA, J. PERINA, P. STEPANEK, and C. KONAK, “ON THE PHOTON STATISTICS OF LIGHT SCATTERED BY A SMALL NUMBER OF PARTICLES,” CZECHOSLOVAK JOURNAL OF PHYSICS, vol. 34, iss. 8, pp. 862-869, 1984.
E. PALUSKA, A. HRUBA, J. SOUCEK, P. DANEK, V. CHUDOMEL, V. PUJMAN, and J. KREPELKA, “DERIVATIVES OF BENZO(C)FLUORENE .10. INHIBITORY EFFECT OF BENFLURON ON CELLULAR-IMMUNITY,” NEOPLASMA, vol. 31, iss. 4, pp. 399-406, 1984.
A. HRUBA, E. PALUSKA, V. PUJMAN, V. POLEDNOVA, V. CHUDOMEL, and J. KREPELKA, “DERIVATIVES OF BENZO(C)FLUORENE .11. EFFECT OF BENFLURON ON HEMATOPOIETIC STEM-CELLS,” NEOPLASMA, vol. 31, iss. 4, pp. 407-413, 1984.
R. KOTVA, J. KREPELKA, and M. SEMONSKY, “COMPOUNDS WITH ANTI-NEOPLASTIC ACTIVITY .82. 5,5-DISUBSTITUTED BARBITURIC-ACIDS AND THEIR ANALOGS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 1, pp. 137-143, 1983.
M. BERAN, A. CERNY, J. KREPELKA, and J. VACHEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .83. SUBSTITUTED OMEGA-(4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL) ALKANOIC ACIDS, THEIR DERIVATIVES AND ANALOGS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 1, pp. 292-298, 1983.
R. KOTVA, J. VACHEK, and J. KREPELKA, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .84. SOME DERIVATIVES OF 4-[(2-AMINO-6-HYDROXY-4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL)-METHYL] BENZOIC-ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 1, pp. 299-303, 1983.
J. KREPELKA, J. BENES, V. POUZAR, J. VACHEK, and J. HOLUBEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .85. SOME 2-SUBSTITUTION DERIVATIVES OF 5-(4-OXO-6-HYDROXY-3,4-DIHYDRO-5-PYRIMIDINYL)PENTANOIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 1, pp. 304-311, 1983.
J. KREPELKA, D. VLCKOVA, J. HOLUBEK, and J. ROUBIK, “ERGOTIC ALKALOIDS .66. 8-SUBSTITUTION DERIVATIVES OF D-6-METHYLERGOLINE-I,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 1, pp. 312-318, 1983.
J. KREPELKA, V. POUZAR, J. SCHLANGER, J. HOLUBEK, J. KORBL, F. JANCIK, and R. KOTVA, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .88. OXIDATIVE TRANSFORMATIONS OF SOME PYRIMIDINE-DERIVATIVES INTO OXAZOLIDINE DERIVATIVES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 4, pp. 1212-1223, 1983.
A. CERNY, V. ZIKAN, D. VLCKOVA, J. BENES, J. HOLUBEK, K. REZABEK, M. AUSKOVA, and J. KREPELKA, “ERGOT ALKALOIDS .69. (5R, 8S, 10R)-6-ALKYL-8-ERGOLINECARBOXYLIC ACIDS AND SOME OF THEIR DERIVATIVES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 48, iss. 5, pp. 1483-1488, 1983.
C. KONAK, J. KREPELKA, and J. PERINA, “DETERMINATION OF A SMALL NUMBER OF PARTICLES FROM PHOTOCOUNT DISTRIBUTION OF SCATTERED-LIGHT,” OPTICA ACTA, vol. 30, iss. 11, pp. 1645-1654, 1983.
J. KREPELKA, I. VANCUROVA, J. HOLUBEK, J. ROUBIK, and D. VLCKOVA, “SUBSTANCE WITH ANTI-NEOPLASTIC ACTIVITY .76. SYNTHESES AND ANTI-NEOPLASTIC EFFECTS OF SOME N-SUBSTITUTED IMIDES OF 1-SUBSTITUTED 4-ARYLNAPHTHALENE-2,3-DICARBOXYLIC ACIDS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 1, pp. 304-314, 1982.
J. KREPELKA, I. VANCUROVA, and J. HOLUBEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .77. REACTIONS OF 4-ARYL-1-METHOXYNAPHTHALENE-2,3-DICARBOXYLIC ACID ANHYDRIDES AND NAPHTHO(2,3-C)FURAN-1-(H-3)-ONE DERIVATIVES WITH HYDRAZINES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 4, pp. 1250-1257, 1982.
J. KREPELKA, J. ROUBIK, J. HOLUBEK, and I. VANCUROVA, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .78. 5-SUBSTITUTION, 6-SUBSTITUTION AND 7-SUBSTITUTION DERIVATIVES OF 7-OXO-H-7-BENZO(C)FLUORENE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 4, pp. 1258-1266, 1982.
J. BENES and J. KREPELKA, “ERGOT ALKALOIDS .65. 2-ACYLATED DERIVATIVES OF ERGOLINE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 6, pp. 1757-1761, 1982.
J. KREPELKA, I. VANCUROVA, J. HOLUBEK, M. MELKA, and K. REZABEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .79. DERIVATIVES OF BENZO(C)FLUORENE .2. SYNTHESIS AND BIOLOGICAL EFFECT OF BASIC ETHERS OF 7-OXO-7H-BENZO(C)FLUORENE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 7, pp. 1856-1866, 1982.
I. VANCUROVA, J. KREPELKA, and F. SMEJKAL, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .80. DERIVATIVES OF BENZO(C)FLUORENES .3. SYNTHESIS AND BIOLOGICAL ACTION OF SOME DIBASIC DERIVATIVES OF 7-OXO-7H-BENZO(C)FLUORENE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 7, pp. 1867-1872, 1982.
R. KOTVA, J. KREPELKA, and J. VACHEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .81. 2-SUBSTITUTED DERIVATIVES OF 5-(4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL)PENTANOIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 9, pp. 2525-2529, 1982.
M. BERAN, J. BENES, and J. KREPELKA, “ERGOT ALKALOIDS .66. DERIVATIVES OF 3-(D-6-METHYL-8-BETA-ERGOLIN-I-YL)PROPANOIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 47, iss. 12, pp. 3432-3436, 1982.
C. KONAK, P. STEPANEK, L. DVORAK, Z. KUPKA, J. KREPELKA, and J. PERINA, “DETERMINATION OF DECAY TIMES FROM PHOTOCOUNT STATISTICS OF WEAK MODULATED LUMINESCENCE RADIATION,” OPTICA ACTA, vol. 29, iss. 8, pp. 1105-1116, 1982.
R. KOTVA, J. KREPELKA, A. CERNY, V. PUJMAN, and M. SEMONSKY, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .70. SOME 2-SUBSTITUTED DERIVATIVES OF 5-(2-AMINO-6-HYDROXY-4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL)-PENTANOIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 6, pp. 1397-1404, 1981.
J. KREPELKA, I. VANCUROVA, and J. HOLUBEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .71. SOME DERIVATIVES OF 4-ARYL-2,3-DICYANO-1-NAPHTHOL,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 6, pp. 1523-1529, 1981.
J. KREPELKA, J. ROUBIK, and J. HOLUBEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .72. 1-SUBSTITUTION DERIVATIVES OF 4-ARYL-2,3-DIBROMO-1-NAPHTHOL,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 9, pp. 2116-2122, 1981.
J. KREPELKA and J. HOLUBEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .73. THE SYNTHESIS OF MODEL LACTONES OF CYCLOLIGNAN TYPE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 9, pp. 2123-2128, 1981.
J. KREPELKA, I. VANCUROVA, J. HOLUBEK, and J. ROUBIK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .74. HYDROLYTIC PRODUCTS OF 4-ARYL-2,3-DICYANO-1-NAPHTHOL DERIVATIVES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 9, pp. 2207-2216, 1981.
R. KOTVA, J. KREPELKA, K. REZABEK, and J. VACHEK, “SUBSTANCES WITH AN ANTI-NEOPLASTIC ACTIVITY .75. 4-(OMEGA-(2-AMINO-6-HYDROXY-4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL)-ALKYL)BENZO IC ACIDS WITH AN ANTI-NEOPLASTIC EFFECT,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 46, iss. 9, pp. 2217-2221, 1981.
R. DRAGILA and J. KREPELKA, “COLLISIONLESS LIMIT OF RESONANCE-ABSORPTION,” CZECHOSLOVAK JOURNAL OF PHYSICS, vol. 31, iss. 6, pp. 597-600, 1981.
J. KREPELKA, J. HOLUBEK, and M. SEMONSKY, “ERGOT ALKALOIDS .59. SOME CONDENSATION PRODUCTS OF ERGOLINE-I DERIVATIVES WITH KETONES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 45, iss. 3, pp. 755-760, 1980.
J. KREPELKA, J. HOLUBEK, and M. SEMONSKY, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .67. ESTERS OF 4,4-BIS(4-ETHYLPHENYL)-2,3-DIBROMO-2-BUTENOIC ACID AND 7-ETHYL-4-(4-ETHYLPHENYL)-2,3-DIBROMO-1-NAPHTHOL,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 45, iss. 10, pp. 2695-2699, 1980.
J. KREPELKA, V. ZIKAN, J. HOLUBEK, and M. SEMONSKY, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .68. DERIVATIVES OF 4-ARYL-2,3-DIHALOGENO-1-NAPHTHOL,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 45, iss. 10, pp. 2700-2705, 1980.
M. SEMONSKY, A. CERNY, J. KREPELKA, R. KOTVA, B. KAKAC, J. HOLUBEK, and J. VACHEK, “SUBSTANCES WITH ANTI-NEOPLASTIC ACTIVITY .69. SOME OMEGA-(2-AMINO-6-HYDROXY-4-OXO-3,4-DIHYDRO-5-PYRIMIDINYL) ALKANOIC ACIDS, THEIR DERIVATIVES AND ANALOGS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 45, iss. 12, pp. 3583-3592, 1980.
A. CERNY, J. KREPELKA, and M. SEMONSKY, “ERGOT ALKALOIDS .57. SOME 6-SUBSTITUTED DERIVATIVES OF D-8-CYANOMETHYLERGOLINE-I AND D-8-METHYLERGOLINE-I,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 44, iss. 3, pp. 946-951, 1979.
M. BERAN, J. KREPELKA, and M. SEMONSKY, “ERGOT ALKALOIDS .59. SOME 6-ALKYL DERIVATIVES OF D-8-ERGOLIN-I-YLACETAMIDE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 44, iss. 11, pp. 3385-3390, 1979.
J. KREPELKA and M. SEMONSKY, “ERGOT ALKALOIDS .56. SOME N-NITROSO-SUBSTITUTED DERIVATIVES OF ERGOLINE-I,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 43, iss. 7, pp. 1723-1726, 1978.
R. DRAGILA and J. KREPELKA, “ABSORPTION AND REFLECTION OF LASER-PRODUCED PLASMA WITH SPHERICAL SYMMETRY,” CZECHOSLOVAK JOURNAL OF PHYSICS, vol. 28, iss. 5, pp. 529-532, 1978.
J. KREPELKA and M. SEMONSKY, “SOME SUBSTITUTION DERIVATIVES OF ERGOLINE-1 WITH PROLACTIN-INHIBITING ACTIVITIES,” HETEROCYCLES, vol. 9, iss. 10, p. 1489, 1978.
R. DRAGILA and J. KREPELKA, “LASER PLASMA-DENSITY PROFILE MODIFICATION BY PONDEROMOTIVE FORCE,” JOURNAL DE PHYSIQUE, vol. 39, iss. 6, pp. 617-623, 1978.
R. DRAGILA and J. KREPELKA, “ABSORPTION AND REFLECTION OF SOLID PELLETS IRRADIATED BY LASER-LIGHT,” JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol. 11, iss. 3, pp. 217-225, 1978.
V. FRANCOVA, S. SMOLIK, M. SCHLEHROVA, J. KREPELKA, M. AUSKOVA, Z. FRANC, K. REZABEK, and M. SEMONSKY, “BIOCHEMISTRY OF DRUGS .24. SUBSTANCES WITH ANTI-NEOPLASTIC EFFECT .62. PHARMACOKINETICS OF GAMMA,GAMMA-BIS-4-ETHYLPHENYL-ALPHA,BETA-DIBROMOISOCROTONIC ACID-H-3 (EDIKRON-H-3) IN EXPERIMENTAL-ANIMALS,” NEOPLASMA, vol. 25, iss. 4, pp. 395-404, 1978.
V. FRANCOVA, S. SMOLIK, M. SCHLEHROVA, M. AUSKOVA, A. CERNY, J. KREPELKA, Z. FRANC, K. REZABEK, and M. SEMONSKY, “BIOCHEMISTRY OF DRUGS .25. SUBSTANCES WITH ANTI-NEOPLASTIC EFFECT .63. PHARMACOKINETICS OF DELTA-(2-AMINO-6-HYDROXY-3,4-DIHYDRO-4-OXO-5-PYRIMIDINYL)VALERIC ACID-C-14 (DAMVAR-C-14) IN EXPERIMENTAL-ANIMALS,” NEOPLASMA, vol. 25, iss. 4, pp. 405-412, 1978.
J. KREPELKA, A. CERNY, R. KOTVA, and M. SEMONSKY, “ERGOT ALKALOIDS .49. SOME 6-ALKYL DERIVATIVES OF D-8-CYANOMETHYL AND D-8-METHYL ERGOLINE-I,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 4, pp. 1209-1215, 1977.
M. BERAN, J. KREPELKA, and M. SEMONSKY, “ERGOT ALKALOIDS .50. AMIDES OF D-6-METHYL-8-ERGOLIN-I-YLACETIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 4, pp. 1216-1219, 1977.
M. BERAN, J. KREPELKA, K. REZABEK, M. SEDA, and M. SEMONSKY, “ERGOT ALKALOIDS .51. ESTERS OF D-6-METHYL-8-ERGOLIN-I-YLACETIC ACID AND THEIR 2-HALOGENO DERIVATIVES,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 4, pp. 1407-1411, 1977.
J. KREPELKA, M. SEDA, K. REZABEK, and M. SEMONSKY, “ERGOT ALKALOIDS .52. SOME UNSATURATED AMIDES OF D-6-METHYL-8-ERGOLIN-I-YLACETIC ACID AND D-DIHYDRO-LYSERGIC-I ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 4, pp. 1412-1416, 1977.
M. BERAN, J. KREPELKA, V. ZIKAN, K. REZABEK, M. SEDA, and M. SEMONSKY, “ERGOT ALKALOIDS .53. SOME N-(D-6-METHYL-8-ERGOLIN-I-YLMETHYL)-N’-SUBSTITUTED UREAS AND N-(D-6-METHYL-2-CHLORO-8-ISOERGOLIN-I-YL)-N’,N’-DIETHYL UREA,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 4, pp. 1417-1420, 1977.
J. KREPELKA, M. SEDA, and M. SEMONSKY, “ERGOT ALKALOIDS .54. SOME ESTERS OF N-(D-6-METHYL-8-ERGOLIN-I-YLMETHYL)-CARBAMIC ACID,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 6, pp. 1886-1893, 1977.
J. KREPELKA, M. BERAN, and M. SEMONSKY, “ERGOT ALKALOIDS .55. SOME 2-SUBSTITUTION DERIVATIVES OF D-6-METHYLERGOLINE-I,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 42, iss. 10, pp. 2953-2956, 1977.
V. SRAIER, J. FIDLER, K. SEIDL, J. CERNY, A. CERMAK, J. KUCERA, S. MICHALEK, V. MATOUS, M. TALAS, Z. STRAIT, J. TRMINEK, M. ZAMEK, M. DOSOUDIL, M. KYRS, S. HAVELKA, J. HORYNA, J. KREPELKA, J. HAVEL, F. SVOBODA, M. NOVAK, R. CERMAK, and S. PRZYBYLOWICZ, “LABORATORY LINE FOR REGENERATION OF IRRADIATED FUEL IN REZ,” JADERNA ENERGIE, vol. 23, iss. 10, pp. 361-369, 1977.
J. KREPELKA and M. SEMONSKY, “ERGOT ALKALOIDS .45. PARTIAL SYNTHESIS OF FESTUCLAVINE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 41, iss. 5, pp. 1416-1418, 1976.
M. SEMONSKY, J. HARTL, J. KREPELKA, M. BERAN, B. KAKAC, H. VESELA, and V. REJHOLEC, “SUBSTANCES WITH ANTINEOPLASTIC ACTIVITY .55. SOME GAMMA,GAMMA-DIARYL-ALPHA,BETA-DIHALOGENOISOCROTONIC ACIDS,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 40, iss. 9, pp. 2869-2882, 1975.
J. KREPELKA and J. ZACHOVAL, “CONTRIBUTION TO STUDY OF CATALYTIC PROPERTIES OF 8TH GROUP METALS,” CHEMICKE LISTY, vol. 66, iss. 7, p. 673-&, 1972.
J. ZACHOVAL, J. KREPELKA, and M. KLIMOVA, “POLYMERIZATION OF 1,3-PENTADIENE IN SOLUTION AND EMULSION, RESP INITIATED BY COORDINATION CATALYSTS OF RHODIUM COMPLEXES TYPE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 37, iss. 10, p. 3271-&, 1972.
J. ZACHOVAL, F. MIKES, O. PROUZOVA, O. PRADOVA, and J. KREPELKA, “INITIATION AND TERMINATION STEPS IN BUTADIENE POLYMERIZATION BY RHODIUM CATALYSTS,” EUROPEAN POLYMER JOURNAL, vol. 8, iss. 3, p. 397-&, 1972.
B. VERUOVIC and J. KREPELKA, “STEREOREGULAR POLYMERIZATION OF BUTADIENE,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 36, iss. 9, p. 3387-&, 1971.
J. KREPELKA and J. ZACHOVAL, “POLYMERIZATION OF BUTADIENE BY PI-ALLYL COMPLEXES OF RHODIUM,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 35, iss. 12, p. 3800-&, 1970.
J. KREPELKA, K. VETEJSKA, and J. MAZACEK, “TRENNUNG DES EISENS VON SELTENEN ERDEN,” COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, vol. 24, iss. 1, pp. 198-202, 1959.
J. KREPELKA, A. NIER, M. PEREY, R. WHYTLAWGRAY, E. WICHERS, and W. WAHL, “*SECTION DE CHIMIE INORGANIQUE – COMMISSION DES POIDS ATOMIQUES – 1953,” BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE, vol. 21, iss. 5, pp. 539-540, 1954.
J. KREPELKA, “*ZMENY V MEZINARODNICH HODNOTACH ATOMOVYCH VAH (R 1953),” CHEMICKE LISTY, vol. 48, iss. 10, pp. 1587-1588, 1954.
J. KREPELKA, “*HODNOTY ATOMOVYCH VAH, JEJICH DNESNI STANOVENI A PRESNOST – NA OKRAJ ZPRAVY MEZINARODNI KOMISE PRO ATOMOVE VAHY NA ROK 1951,” CHEMICKE LISTY, vol. 46, iss. 10, pp. 650-652, 1952.
J. KREPELKA, “*KONFERENCE MEZINARODNI CHEMICKE UNIE V AMSTERDAME (5-10 IX 1949) .15.,” CHEMICKE LISTY PRO VEDU A PRUMYSL, vol. 44, iss. 2, pp. 39-40, 1950.
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