(NuSTOJ^IWOSTX CELIKOW I POTOLO^IN NA RUDNIKAH dVEZKAZGANA (B/s - (NeROFEEW(B, (NnIKOLAJ pAWLOWI^s; (NiNSTITUT GORNOGO DELA an kAZssrs ((NaLMA(B-(NaTA (B:s (NnAUKA(B,s, 1979)
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Keywords: (NgORNYE WYRABOTKI (B- (NdVEZKAZGANSKOE MESTOROVDENIEs