(NwSTRE^I S PRIRODOJ (B/s - (NpA[UK(B, (NaNATOLIJ gRIGORXEWI^s ((NsWERDLOWSK (B:s (NsRED(B.-(NuRAL(B. (NKN(B. (NIZD(B-(NWO(B,s, 1978)
Keywords: (N|KOLOGIQ VIWOTNYH(B. (N|TOLOGIQ(B. (NbIONOMIQs