00798nam0-22002891i-450-990001098850403321000109885FED01000109885(Aleph)000109885FED0100010988520000920d1973----km-y0itay50------baengAdvances in electronics and electron physicsL. MartonNew YorkAcademic Press1973Vol. 32-34.Fisica elettronica537.5Marton,L.14802ITUNINARICAUNIMARCBK99000109885040332131A-005.00817194FI131A-005.08A19240FI1FI1Advances in electronics and electron physics335370UNINAING01