(NfIZI^ESKIE USLOWIQ I RAZWITIE TEHNOLOGII GORNOGO PROIZWODSTWA (B/s - (NtUR^ANINOW(B, (Ni(B. (Na(B.s; (NkOLXSKIJ FILIAL an sssrs; (NgORNO(B-(NMETALLURGI^ESKIJ INSTITUTs ((NlENINGRAD (B:s (NnAUKA(B,s, 1973)
Keywords: (NgORNODOBYWA@]AQ PROMY[LENNOSTX (B- (NrAZWITIE TEHNOLOGIJs