8th International Aerospace Instrumentation Symposium 24th-27th March 1975 Cranfield England
Communication with Extraterrestrial Intelligence, Yerevan, 5- 11 Sept., 1971
Lectures Delivered at the Royaumont Seminar, Royaumont, 25 26 June 1974
Military electronics defence EXPO 79, conf. proc., Wiesbaden, 25-27 Sept. 1979
Proceedings of the 1973 symposium on nondestructive testing of tires 10.-12.4.1973, Boston, Mass.
Proc. of The Reliability Engng. Conf. For The Electr. Power Ind., New York, 21 February 1974
Propulsion electrique applications spatiales, Journees d'Etudes, Toulouse, 21-23 juin, 1972
Sympos. Papers, RTCM Assembly Meeting, San Diego, 26 - 28 April, 1976
third international electric vehicle symposium and exposition, washington, february 19-21, 74