(NpODZEMNAQ GAZIFIKACIQ UGLEJ (B/s - (NtUR^ANINOW(B, (NiGORX aLEKSANDROWI^(B.s ((NmOSKWA (B: s (NgOSGORTEHIZDAT(B,s, 1961)
Keywords: (NpODZEMNAQ GAZIFIKACIQ UGLQs