00664nam0-22002651i-450-99000398592040332120031210175057.0000398592FED01000398592(Aleph)000398592FED0100039859220030922d--------km-y0itay50------baengMicrowave lensesBrown J.1LondonMethuen & Co.1953microondeBrown,J.340045ITUNINARICAUNIMARCBK99000398592040332100 L13962511DETECDETECMicrowave lenses474146UNINA