5th European Microwave Conference 1969 European Microwave Conference 11th European Microwave Conference,1981 European Metals Conference Military Microwaves Confercene European Microwave Conference,6th,Rome,1976 European Poultry Conference European Bilenergetics Conference. European Microwave Conference,5th,Hamburg,1975 European Microwave Conference,4th,Montreux,1974
