The variable light curve of BH Virginis. Spectroscopic and photometric study of the bright X-ray cluster A1300. Two W-type W UMa systems with spotted components. Variability observations of selected southern extragalactic radio sources. A 45-MHz continuum survey of the southern hemisphere.
T Be stars in open clusters.
UBV absolute CCD photometry and differential astrometry of close visual double stars, with G-type primaries. The Ca II triplet lines as diagnostics of luminosity, metallicity and chromospheric activity in cool stars. V. Structure and kinematics of dense cores from ammonia observations. Relativistic Quantum Defect Orbital and Multiconfigurational Dirac-Fock calculations.