(NtEHNI^ESKOE NORMIROWANIE GORNYH RABOT NA PREDPRIQTIQH CWETNOJ METALLURGII (B/s - (NsLOBODEN@K(B, (NwASILIJ pROKOPXEWI^s; (NbERGAUZ(B, (Nl(B.(Na(B.s ((NmOSKWA (B:s (NgOSGORTEHIZDAT(B,s, 1959)
Keywords: (NrUDY CWETNYH METALLOWs -- (NdOBY^A s -- (NtEHNI^ESKOE NORMIROWANIEs