Abramov, B. C.; Grigorieva, A. D. (1988). Biostratigraphiya i Brakhiopody Permi Verkhoyaniya [Biostratigraphy and Brachiopoda from the Permian of Verchoyan]. Nauka, Moscow: 208 pp, 32 plates.
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Abramov, B. C.; Grigorieva, A. D.
1988
Biostratigraphiya i Brakhiopody Permi Verkhoyaniya [Biostratigraphy and Brachiopoda from the Permian of Verchoyan]