Proceedings of the 1973 symposium on nondestructive testing of tires 10.-12.4.1973, Boston, Mass.
XXII Convegno Internazionale delle Comunicazion, Genova, 7-12 Ottobre, 1974
Space optics, proc. of the summer school, Marseille, 29 june- 4 july, 1970
8th International Aerospace Instrumentation Symposium 24th-27th March 1975 Cranfield England
Sensors for Electronics Systems, Detroit, 23 - 27 Febr. 1976
Lehrgang O F3.04, Lenkung und Regelung von Flugkoerpern der CCG, Oberpfaffenhofen, 2.-13. Mai, 1977