Global Monitoring for Environment and Security (GMES); GMES marine forum
Global airlines conference; weathering the storm - challenges and opportunities
International Committee on Global Navigation Satellite Systems
International Committee on Global Navigation Satellite Systems
International space cooperation: solving global problems
Global flight safety and human factors
Proc. of the nat. aerospace meeting, April, 8-10, 1981, Trevose, USA
IEE Colloquium on 'Marine Control, Communications and Safety', 3 April 1989, London, UK