Petőfi, Alexander (BLKÖ)[*][[Petőfi, Alexander (BLKÖ) (entry in the Biographisches Lexikon des Kaiserthums Oesterreich (vol. 22, p. 84))|]]Verificați valoarea |titlelink= (ajutor)
CONOR[*][[CONOR (authority control file for author and corporate names in Slovene system COBISS)|]]Verificați valoarea |titlelink= (ajutor)