00741nam0 2200253 450 00002433220090312123056.020090312d1949----km-y0itay50------baengGBa-------001yyWireless direction findingby R. Keen4th ed.LondonIliffe & Sons19491059 p.ill.22 cmWireless direction finding45394Onde radio621.38121Ingegneria elettrotecnicaKeen,Ronald631089ITUNIPARTHENOPE20090312RICAUNIMARC000024332S 621.381/4S C 24DSA2009Wireless direction finding45394UNIPARTHENOPE