At head of title: Akademii︠a︡ nauk SSSR i Moskovskoe matematicheskoe obshchestvo.
Microfilm. [Moskva] : Biblioteka Akademii︠a︡ nauk SSSR. microfilm reels : negative ; 35 mm.
Text in Russian with summaries in English, French or German, or in one of theses languages with summary in Russian.
Non-Latin script generated programmatically.