LIZOŇ P. (1994): Type specimens of fungi held in the Herbarium of the Slovak National Museum (BRA), Bratislava, Slovakia. Czech Mycology 47(3): 193-198 [published: 17th June, 1994]
MORAVEC J. (1988): A key to the species of Sowerbyella (Discomycetes, Pezizales). Česká Mykologie 42(4): 193-199 [published: 16th December, 1988]