(NrAS^ET USTOJ^IWOSTI BORTOW I KARXEROW (B:s (Nu^EBNOE POSOBIE (B/s - (NrEZNIKOW(B, (Nm(B. (Na(B.s ((NsWERDLOWSK (B:s (Nb(B. (NI(B.,s, 1976)
Keywords: (NmEHANIKA GORNYH PORODs