(NiRAN (B/s - (NaKADEMIQ NAUK sssrs ((NlENINGRAD (B:s (NiZD(B-(NWO an sssr(B.,s, 1927)
(Nt(B. 1 (1927, 260 (NS(B.)s (Nt(B. 2 (1928, 205 (NS(B.)s (Nt(B. 3 (1929, 246 (NS(B.)s
Keywords: (NiRANs -- (NiSTORIQs