1. Market perspectives for civil jet aircraft;Airbus Industries,1993
2. Aircraft emissions and the environment: COx SOx HOx and NOx;Archer,1993
3. Statistical appendices to yearbook 1993;Association of European Airlines (AEA),1993
4. Analysis trends in fuel consumption by world's airlines;Balashov;ICAO Journal,1992
5. Aircraft pollution, environmental impacts and future solutions;Barrett;World Wide Fund Research Paper,1991