1. Tiedema, P. and Wolters, L. (1990) Recent developments in gas/air mixers and in microprocessor air/fuel ratio control systems. Seminar on Gas Engines and Co-generation, Institution of Mechanical Engineers, Solihull.
2. SAE Technical Paper;J Klimstra,1989
3. ISATA Paper;CI Duncan,1987
4. Automotive Electronics. Computer Controls for Engine Management Systems. Delco Electronics Brochure.
5. Van der Weide, J. et al. (1991) Engine management systems for lean burn and stoichiometric gaseous fuelled engines. Windsor Workshop on Alternative Fuels, Toronto.