Second int. conf. on road traffic control, April 15-18, 1986 (in Serie: IEE conf. publication)
Proc. of SPIE. Ocean optics 8, Orlando, USA, March 31 - April 2, 1986
Ocean engineering and the environment. Conf. record, San Diego, USA, November 12-14, 1985
Colloquium on underwater navigation, 24 May 1984
Int conf. on road traffic data collection, 5-7 December 1984
Shuttle optical environment, conf. proc., April, 23-24, 1981, Washington, USA