European Conference of Ministers of Transport Organisation for Economic Co-operation and Development 15 Commission of the European Communities 2 International Energy Agency 2 Seminar on "Urban Transport and the Environment" Paris, France 2 United States Urban Mass Transportation Administration 2 European Commission 1 European Conference of Ministers of Transport Committee of Deputies 1 German Marshall Fund of the United States 1 International Association of Public Transport 1 International Symposium on Surface Transportation System Performance Washington, D.C. 1 International Union of Public Transport 1 Lassiere, A 1 National League of Cities 1 National Research Council (U.S.) Transportation Research Board 1 OECD Group on Urban Affairs 1 Round Table on Transport Economics Paris 1 Seminar on "Urban Transport and the Environment" 1 Seminar on Urban Transport and the Environment 1 Seminar on Urban Transport and the Environment Paris 1 United States Department of Transportation. Office of the Secretary 1 United States Federal Highway Administration 1 Workshop on Transport and Environment in Central and Eastern European Cities 1 Workshop on Transport and Environment in Central and Eastern European Cities Bucharest, Romania 1 see all ...