1. AQIRP, Auto/Oil Air Quality Improvement Research Program (1993). Phase I final report. Alpharetta, GA: Auto/Oil Emission Research, Coordinating Research Council.
2. AQIRP, Auto/Oil Air Quality Improvement Research Program (1997). Predicted effects of reformulated gasoline T50, T90, sulfur and oxygen content on air quality in years 2000 and 2010, technical bulletin 21. Atlanta, GA: Coordinating Research Council.
3. ASTM, American Society for Testing Materials (2008). Standard specification for denatured fuel ethanol for blending with gasolines for use as automotive spark-ignition engine fuel. Philadelphia, PA: ASTM International. ASTM D 4806-08.
4. Bjordal, S. D., Goodfellow, C. L., Bennett, P., & Beckwith, P. (1996). Relative effects of catalyst and fuel formulation on gasoline vehicle exhaust emissions. In Proceedings of the international fall fuels and lubricants meeting and exposition, San Antonio, TX, 14–17 October 1996, paper no. 961902. Warrendale, PA: Society of Automotive Engineers.
5. CARB, California Air Resource Board (1991). Proposed reactivity adjustment factors for transitional low-emissions vehicles-staff report and technical support document. Sacramento, CA, 27 September 1991.