00662nam0-22002531i-450-990001280840403321000128084FED01000128084(Aleph)000128084FED0100012808420000920d1951----km-y0itay50------baengElectromagnetic Wavesby SchelkunoffNew YorkVan Nostrand1951Schelkunoff,Sergei Alexander27096ITUNINARICAUNIMARCBK99000128084040332131-G-20707MA1MA1Electromagnetic waves335006UNINAING01