Colloquium on scene matching in multi-site sensors, March 15, 1984
Sensors in highway and civil engineering, 5. February, 1981, London, GB
Ballistische Messtechnik, Lehrgang WB6, Weil am Rhein, 10.-14. Nov., 1975
Propulsion electrique applications spatiales, Journees d'Etudes, Toulouse, 21-23 juin, 1972