Konodonty srednego i verkhnego ordovika Sibirskoĭ platformy = Conodonts of the Middle
and Upper Ordovician on the Siberian platform / T. A. Moskalenko ; otv. redaktor A.M.
Obut, 1973
Ordovik Sibirskoĭ platformy, 1984 - VIAF - LC - https://viaf.org/processed/LC%7Cn%20%2085010702,
2020-03-31