(NwTORVENIE W KOSMOS (B/ s - (NkU^EROW(B, (NnIKOLAJ iWANOWI^(B. s ((NlENINGRAD (B: s [(NB(B. (NI(B.], s, 1961)
Keywords: (NkOSMI^ESKOE PROSTRANSTWO (B- (NiSSLEDOWANIE s; (NmEVPLANETNYE POLETYs