1. (1998) Vegetable Oil Fatty Acid Methyl Esters as Alternative Diesel Fuels for Commercial Vehicle Engines. In N. Martini and J Shell (eds.): Plant Oils as Fuels. Present State of Science and Future Developments, Proceedings of the symposium held in Potsdam, Germany, Feb. 16–18, 1997. Springer Verlag, Berlin, pp. 29–46.
2. and (1996) Influence of the iodine number of biodiesel to the engine performance. In: Liquid fuels and industrial products from renewable resources: Proceedings of the 3rd Liquid Fuel Conference, Sep. 15–17, Nashville, Tennessee, USA, pp. 191–196.
3. and (1999) Technical Performance of Vegetable Oil Methyl Esters with a High Iodine Number. 4th Biomass Conference of the Americas, Aug. 29–Sep. 2, Oakland, CA, USA.
4. Diesel fuel derived from vegetable oils, VI: Specifications and quality control of biodiesel
5. The impact of antioxidants on biodiesel oxidation stability