Brakhiopody nadsemejstv Orthacea, Dalmanellacea i Syntrophiacea iz nizhnego ordovika Pribaltiki [Lower Ordovician brachiopods of the superfamilies Orthacea, Dalmanellacea and Syntrophiacea of the Eastern Baltic]
M. Rubel
1961
Article
ENSV Teaduste Akadeemia Geoloogia Instituudi Uurimused
6:141-224
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