Annenkova, N. P. 1923. [Genus Brada: Geographic distribution, new species, varieties, transitory forms and synonyms]. 15. IN: Derjugin, K. M. (Ed.). Trudy Pervogo Vserossiikogo s'ezda Zoologoi, Anatomoi i Gistologov. Volume V. Petrograde.
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Annenkova, N. P.
1923
Genus Brada: Geographic distribution, new species, varieties, transitory forms and synonyms
Trudy Pervogo Vserossiikogo s'ezda Zoologoi, Anatomoi i Gistologov