ZÍBAROVÁ L., KOUT J. (2017): Xylariaceous pyrenomycetes from Bohemia: species of Biscogniauxia and Hypoxylon new to the Czech Republic, and notes on other rare species. Czech Mycology 69(1): 77-108 [published: 29th June, 2017]
POUZAR Z. (1986): A key and conspectus of Central European species of Biscogniauxia and Obolarina (Pyrenomycetes). Česká Mykologie 40(1): 1-10 [published: 7th February, 1986]
POUZAR Z. (1979): Notes on taxonomy and nomenclature of Nummularia (Pyrenomycetes). Česká Mykologie 33(4): 207-219 [published: 1979]