found: His Medorek, 1990:t.p. (Petr Placák)
found: Svatováclavské milenium, 2002:t.p. (Petr Placák) jkt. (b. 1964 in Prague)
found: Narodní knihovna ČR authority file, October 26, 2015:(hdg. Placák, Petr; born January 8, 1964 in Prague; Czech author of prose and texts for musical compositions; wrote for samizdat publications under the pseudonym Petr Zrmzlík)
found: Rozhovory přes rozbouřené doby, 2019:page 404 (Petr Placák; born 1964; key member of the Czech literary underground and publisher of samizdat; after 1989, wrote for various newspapers; studied history at the filozofická fakulta of the Univerzita Karlova; since 1995, is the chief editor of the monthly Babylon; winner of Czech literary prizes)