(NbRATXQ eR[OWY (B:s (NrOMAN (B/s - (NkO^ETOW(B, (NwSEWOLOD aNISIMOWI^s ((NlENINGRAD (B:s (NlENIZDAT(B,s, 1958)
Keywords: (NrABO^IJ KLASS W sssr (B((NH(B. (NL(B.)s; (NiNTELLIGENCIQ W sssr (B((NH(B. (NL(B.)s; (NmOLODEVX W sssr (B((NH(B. (NL(B.)s