(NpROGNOZ I PLANIROWANIE KA^ESTWA POLEZNOGO ISKOPAEMOGO (B/s - (NgUDKOW(B, (NwALENTIN mIHAJLOWI^s; (NwASILXEW(B, (NaNATOLIJ aNTONOWI^s; (NnIKOLAEW(B, (NkAZIMIR pETROWI^s ((NmOSKWA (B:s (NnEDRA(B,s, 1976)
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Keywords: (NpOLEZNYE ISKOPAEMYE (B- (NpROGNOZ I PLANIROWANIE KA^ESTWAs