00735nam0-22002651i-450-990001031070403321000103107FED01000103107(Aleph)000103107FED0100010310720000920d1955----km-y0itay50------baengAdvances in electronics and electron physicsVol. VIIL. MortonNew YorkAcademic Press1955Fisica elettronica537.5Marton,L.14802ITUNINARICAUNIMARCBK99000103107040332131A-0051019FI1FI1Advances in electronics and electron physics335370UNINAING01