Munk, Anders (1953). The System of the Pyrenomycetes. A Contribution to a Natural Classification of the Group Sphaeriales Sensu Lindau. Dansk Botanisk Arkiv. Vol. 15. Copenhagen: Munksgaard. pp. 1–163. OCLC 316806445.
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Munk, Anders (1957). Danish Pyrenomycetes: A Preliminary Flora. Dansk botanisk arkiv. Vol. 17. Copenhagen: Munksgaard. pp. 1–491. ISSN 0011-6211.
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