1. Borgelt , S.C. T.S. Kolb L.G. Schumacher Biodiesel: World Status. Proceedings of Liquid Fuels Lubricants and Additives from Biomass, American Society of Agricultural Engineers Alternative Energy Conference 1994 67 76
2. Performance and Emissions Characteristics of a Naturally Aspirated Diesel Engine with Vegetable Oil Fuels;Barsic;J. Soc. Automot. Eng.,1981
3. Performance and Emissions Characteristics of a Naturally Aspirated Diesel Engine with Vegetable Oil Fuels;Barsic;Ibid.,1981