HERINK J. (1973): Dr. Petr Fragner quinquagenarius. Česká Mykologie 27(4): 241-247 (published: 1973)
KOTLABA F., POUZAR Z. (1957): Polypori novi vel minus cogniti Čechoslovakiae II. Česká Mykologie 11(4): 214-224 (published: 20th October, 1957)
FRÁGNER P. (1957): Varietas alba Rhodotorulae mucilaginisae (Jörg.) Harrison. Česká Mykologie 11(4): 211-214 (published: 20th October, 1957)