(NgENERALXNYE PLANY UGOLXNYH PREDPRIQTIJ (B/s - (NsEWERXQNOW(B, (NnIKOLAJ nIKOLAEWI^s ((NmOSKWA (B:s (NgOSGORTEHIZDAT(B,s, 1961)
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Keywords: (NkAMENNYE UGLI W CELOMs