International Conference on Submillimeter Waves and their Applications Internatinal Conference on Submillimeter Waves and their Applications,Atlants,Ga.,1974. 4th International Conference on Infrared and Millimeter wave and their Applications International Conference on Gas Discharges and Their Applications International Conference on Submillimetre waves and Thier Applications,3d,Guildford,U.K.1978 International Conference on Dynamic Programming and Its Applications (Edinburgh)International Conference on Gas Discharges and Their Applications International Conference on Millimeter Wave and Far-Infrared Technology International Conference on Welding Technology for Energy Applications International Conference on Inner Shell Ionization Phenomena and Future Applications