(N~ELOWEK I OKRUVA@]AQ SREDA (B:s ((NtEZISY DOKLADOW (BII (NKONFERENCII(B, (NlENINGRAD(B, (NNOQBRX (B1977 (NG(B.) /s - (NpETROW(B, (Nm(B.(Np(B.s; (NgEOGRAFI^ESKOE O(B-(NWO sssrs ((Nl(B. :s (Nb(B. (NI(B.,s, 1977)
Keywords: (N~ELOWEK I OKRUVA@]AQ SREDAs