(NnA^ATKI MIROWEDENIQ (B/s - (NbAEW(B, (Nk(B.(Nl(B.s; (N{I[AKOW(B, (NwITALIJ aLEKSEEWI^s ((NmOSKWA (B:s (NgOSTEHIZDAT(B,s, 1955)
Keywords: 9