Izvestii︠a︡ Akademii nauk.
Rossiĭskai︠a︡ akademii︠a︡ nauk,issuing body.
Moskva : Nauka,
1992-
Title from cover.
Issues for 1992- also called T. 56-
Mathematics
Izvestii︠a︡ Akademii nauk SSSR. Serii︠a︡ matematicheskai︠a︡