North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium (82nd : 1993 : Montreal, Canada)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Fluid Dynamics Panel. Symposium (1990 : Scheveningen, The Netherlands)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium (77th : 1991 : San Antonio, Tex.)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Aerospace Medical Panel. Symposium (1993 : Lisbon, Portugal)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium (79th : 1992 : Villepreux, France)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Electromagnetic Wave Propagation Panel. Specialists' Meeting (1991 : Ottawa, Ont.)
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Technical Information Panel. Specialists' Meeting (1991 : Instituto Nacional de Industria, Madrid, Spain)