(NqRLY^OK (B: s [(NpOWESTX(B] / s - (NeGOROW(B, (NiWAN qKOWLEWI^s ((NsTALINGRAD (B: s (NkN(B. (NIZD(B-(NWO(B,s, 1959)
Keywords: (NkRESTXQNSTWO W rOSSII (B((NH(B. (NL(B.)s; (NrOSSIQ(B, 19 (NW(B. ((NH(B. (NL(B.)s