(NpEREWAL (B:s (NpOWESTX (B/s - (NaSTAFXEW(B, (NwIKTOR pETROWI^s ((NsWERDLOWSK (B:s (NsWERDLOWSKOE KN(B. (NIZD(B-(NWO(B,s, 1959)
Keywords: (NdETI W sssr (B((NH (B.(NL(B.)s; (NlESOZAGOTOWITELI (B((NH(B. (NL(B.)s; (NsIBIRX (B((NH(B. (NL(B.)s