found: Atlas chránených živočíchov Slovenska, 1982:t.p. (Juraj Holčík)
found: LC data base, 10-26-84(hdg.: Holčík, Juraj)
found: Hlavátka, 1984:t.p. (Juraj Holčík) colophon (RNDr.)
found: The Eurasian huchen, Hucho hucho, 1988:CIP t.p. (J. Holčík)
found: Czech Wikipedia, viewed November 26, 2020(Juraj Holčík ; born October 18, 1934 in Trnava, died May 16, 2010 in Bratislava ; was a Slovak and Czechoslovak biologist, expert in ichthyology ; after the Velvet Revolution was briefly a politician) - https://cs.wikipedia.org/wiki/Juraj_Hol%C4%8D%C3%ADk