found: Donizetti, G. Gemma di Vergy [SR] 1977: label (Paul Plishka, bass) notes (b. 1940 in Pennsylvania)
found: Bellini, V. Puritane [SR] 1980?: label (Pol Plishka, bass)
found: Biog. & geneal. master index, May 30, 2003 (Plishka, Paul (1941-), Plishka, Paul (Peter) (1941-))
found: Biog. resource center, May 30, 2003 (Paul Peter Plishka (1941- ); also known as: Paul Plishka; Almanac of famous people, 2000: b. Aug. 28, 1941, Old Forge, Pa.; opera singer; Baker's biographical dictionary of musicians, 2001: Plishka, Paul (Peter), American bass; b. Old Forge, Pa., Aug. 28, 1941)