Ljaschenko, A. I. (1959). Atlas brakhiopod i stratigrafiya devona Russkoi platformy (Atlas of Brachiopods and Stratigraphy of the Devonian of the Russian Platform). Moscow, Gostoptekhizdat.
482779
Ljaschenko, A. I.
1959
Atlas brakhiopod i stratigrafiya devona Russkoi platformy (Atlas of Brachiopods and Stratigraphy of the Devonian of the Russian Platform)