Literaturnyĭ ėnt︠s︡iklopedicheskiĭ slovarʹ /
Kozhevnikov, Vadim Mikhaĭlovich,1909-
Nikolaev, P. A.(Petr Alekseevich)
Andreev, L. G.(Leonid Grigorʹevich)
Moskva : "Sov. ėnt︠s︡iklopedii︠a︡",
1987.
Literature