1. Atmospheric pollution by aircraft engines and fuels—a survey;Sawyer;AGARD Advisory Report No. 40,1972
2. Nature and control of aircraft engine exhaust emissions; Report to the United States Congress;Secretary of Health, Education and Welfare,1969
3. Profile of air pollution control;Los Angeles County Air Pollution Control District,1971
4. Environmental Studies: Aviation effect on air quality in the Bay Region, Report,1971
5. Parameters affecting the measurements of aero engine smoke;Champagne,1970