Cummings, David M.
McIntire, Dennis K.
International who's who in music and musician's directory
(in the classical and light classical fields)
Twelfth edition 1990/91
Consultant editors David M. Cummings; Dennis K. McIntire
Cambridge, England: International Who's Who in Music, 1991
Wright, H. Stephen
Limbacher, James L.
Keeping score : film and television music, 1980-1988
(with additional coverage of 1921-1979)
James L. Limbacher and H. Stephen Wright
Metuchen, N.J.: Scarecrow Press, 1991
List of works of the Polish composers
Appendix II In:
Lasoff, Irina
Rappoport-Gelfand, Lidia
Musical life in Poland. The postwar years 1945-1977
Translated from the Russian by Irina Lasoff
New York: Gordon and Breach, 1991, 248 p.
Polish opera & ballet of the twentieth century : operas, ballets, pantomimes, miscellaneous works
Warsaw autumn '86 : 29th International Festival of Contemporary Music September 19-28, 1986
Krukowski, Stanislaw
Romuald Twardowski : animator polsklej opery wspolczesnej
(Romuald Twardowski der Anreger der polnischen zeitgenossischen Oper)
Zeszyty Naukowe. Akademia Muzyczna im. K. Lipitisklego we Wroclawiu. 32 (1983), S. 19-39.
Sadie, Stanley
The new Grove dictionary of music and musicians
Twardowski, Romuald
Moja przygody z opere.
(Mein Abenteuer mit der Oper)
Ruch Muzyczny. 24 (1980), Nr. 21, S. 5-6.
Bull, Storm
Index to biographies of contemporary composers
Vol. II
Metuchen, N.J.: Scarecrow Press, 1974, 567 p.
Rosner, Helmut
Bulling, Burchard
Frank, Paul
Noetzel, Florian
Kurzgefasstes Tonkunstler Lexikon
Fortfuhrt von Burchard Bulling, Florian Noetzel, Helmut Rosner
Wilhelmshaven: Heinrichshofen, 1974
Note: Zweiter Teil: Erganzungen und Erweiterungen seit 1937