(NfIZI^ESKIE OSNOWY I TEHNI^ESKIE SREDSTWA A\ROMETODOW(B/s - (Nan sssr(B. (NlAB(B.(NA\ROMETODOW m(B-(NWA GEOLOGII sssr(B.s ((NlENINGRAD (B:s (NnAUKA(B. (NlENINGRADSKOE OTD(B-(NE(B,s, 1967)
Keywords: (Na\ROMETODY (B- (NfIZI^ESKIE OSNOWYs