00933nam0-22003131i-450-99000048244040332120071213142421.00-87942-065-0000048244FED01000048244(Aleph)000048244FED0100004824420020821d1976----km-y0itay50------baenga-------001yyCommunications satellite systemsan overview of the technologyEdited by R. G. Gould, Y. F. LumNew YorkIEEE Pressc1976164 p.ill.25 cmSatelliti artificiali in telecomunicazioni621.382Gould,Richard G.185532Lum,Y. F.491634ITUNINARICAUNIMARCBK99000048244040332110 E II 2859307DINELDINELCommunications satellite systems332258UNINA