(NpETROGRAFIQ RUDNOGO aLTAQ I kALBY (B/s - (NeLISEEW(B, (NnIKOLAJ aLEKSANDROWI^s; (NlEWINSON(B-(NlESSING(B, (Nf(B.(N`(B.s; (NpETROGRAFI^ESKIJ INSTITUT IM(B. (Nf(B.(N`(B. (NlEWINSON(B-(NlESSINGAs ((NlENINGRAD (B;s (NmOSKWA (B:s (NiZD(B-(NWO an sssr(B,s, 1938)
Keywords: (NpETROGRAFIQs