(NrACIONALXNOE ISPOLXZOWANIE NEDR I OHRANA OKRUVA@]EJ SREDY (B:s (NsBORNIK NAU^NYH TRUDOW (B/s - (NsOLOWXEWA(B, (Ne(B.(Na(B.s; (NmIRZAEW(B, (Ng(B.(Ng(B.s; (NlENINGRADSKIJ gORNYJ IN(B-(NTs ((NlENINGRAD (B:s (NlENINGRADSKIJ gORNYJ IN(B-(NT(B,s, 1990)
Keywords: (NoHRANA OKRUVA@]EJ SREDYs