(NpEREDOWYE METODY TRUDA NA MEDNYH RUDNIKAH uRALA (B/ s - (NbO^AROW(B, (NwLADIMIR iWANOWI^s; (NbELQEW(B, (Nw(B. (Nf(B.s; (NuSTXQNCEW(B, (Na(B. (Ni(B.s ((NsWERDLOWSK (B:s [(NB(B. (NI(B.], s, 1959)
Keywords: (NpROHODKA GORNYH WYRABOTOK(B, (NSKOROSTNAQs; (NmEDNYE RUDY s -- (NdOBY^As