Improvisations sonoristiques, na klarnet, puzon, wiolonczelȩ i fortpian.
Subtitle: Ìmprovisations sonoristiques  for clarinet, trombone, cello and piano.
Series: PWM edition
Publisher: Polskie Wydawn. Muzyczne
Published: 1969
Place of publication: K̀raków
Language: pol
Subjects: Quartets (Piano, clarinet, trombone, violoncello)
Work titles: Ìmprovisations sonoristiques