(NdESQTOMU KLASSU LI^NO (B: s (NpOWESTX (B/s - (NbRODICKAQ(B, (N`DIFX wIKTOROWNA(B.s ((NlENINGRAD (B: s (NlENIZDAT(B, s, 1962)
Keywords: (N{KOLA W sssr (B((NH(B. (NL(B.) s; (NmOLODEVX W sssr (B((NH(B. (NL(B.) s