(NpROFILAKTIKA(B, (NIZOLQCIQ I TU[ENIE PODZEMNYH POVAROW (B:s ((NsBORNIK STATEJ(B) /s - (NcENTR(B. (NIN(B-(NT TEHN(B. (NINFORMACII UGOLXNOJ PROM(B-(NSTIs ((NmOSKWA (B: s [(NB(B. (NI(B.], s, 1961)
Keywords: (NrUDNI^NYE POVARY (B- (NtU[ENIEs