Alekseeva, R. E.; Mendbaiar, B.; Erlanger, O. A. (1981). Brakhiopody i biostratigrafiia nizhnego devona Mongolii: Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya (SSMPE). [Brachiopods and Biostratigraphy of Lower Devonian of Mongolia: the joint Soviet-Mongolian paleontological expedition]. Trudy (Moskva) publishers, 16: 176 pp.
475098
Alekseeva, R. E.; Mendbaiar, B.; Erlanger, O. A.
1981
Brakhiopody i biostratigrafiia nizhnego devona Mongolii: Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya (SSMPE). [Brachiopods and Biostratigraphy of Lower Devonian of Mongolia: the joint Soviet-Mongolian paleontological expedition]