(Nw NA[EM SELE (B: s (NpOWESTX (B/ s - (NtARANUHIN(B, (NfEDOR fEDOROWI^(B. s ((NiVEWSK (B: s (NuDMURT(B. (NKN(B. (NIZD(B-(NWO(B, s, 1961)
Keywords: (NwRA^I W sssr (B((NH(B. (NL(B.) s; (NvEN]INA W sssr (B((NH(B. (NL(B.)s