por International Conference on Satellite Systems for Mobile Communications and Navigation (4 : 1988 : Londres) | International Maritime Satellite Organization | Electronics Division of the Institution of Electrical Engineers.
por International Conference On Image Processings And Its Applications (3 : 1989 : Venue, Gran Bretana | British Computer Society | Institutions Of Electrical Engineers, Division Electronics.
por International Conference On Image Processing And Its Applications (2 : 1986) | British Pattern Recognition Association | Institution of Electrical Engineers (Gran Bretaña). Electronics Division.
por International Conference on Antennas and Propagation (1989 : Coventry, Reino Unido) | Unión Científica Internacional de Radio | Electronics Division of the Institution of Electrical Engineers.