(NgEOLOGIQ mEKSIKI s - (NgARFIAS(B, (NwALENTIN rI^ARD(B.s; (N~APIN(B, (Nt(B.s ((NmOSKWA (B:s (NgOSGEOLOGTEHIZDAT(B, s, 1956)
Keywords: (NgEOLOGIQ (B- (NmEKSIKAs