(NmARS (B/s - (N{ARONOW(B, (Nw(B.(Nw(B.s ((NlENINGRAD (B;s (NmOSKWA (B:s (NiZD(B-(NWO an sssr(B,s, 1947)
Keywords: (NmARS(B, (NPLANETAs