(NoPREDELENIE SWOBODNOJ DWUOKISI KREMNIQ W GORNYH PORODAH I RUDNI^NOJ PYLI (B/s (NsBORNIK STATEJ (B/s - (NsKO^INSKIJ(B, (NaLEKSANDR aLEKSANDROWI^s; (NiNSTITUT GORNOGO DELA IM(B. (Na(B. (Na(B. (NsKO^INSKOGO s ((NmOSKWA (B:s (NiZD(B-(NWO a n sssr(B,s, 1958)
Keywords: (NwOZDUH W RUDNIKAH (B- (NaNALIZ (B- (NsBORNIKI s