From Citizendium, the Citizens' Compendium
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- Gasoline FAQ Very thorough and detailed discussion of gasoline
- Phasing Lead out of Gasoline: An Examination of Policy Approaches in Different Countries United Nations Environment Programme and Organisation for Economic Co-operation and Development, 1999
- Effects of MMT in Gasoline on Emissions from On-Road Motor Vehicles in Canada, November 2002 Developed for the Canadian Vehicle Manufacturers’ Association and for the Association of International Automobile Manufacturers of Canada
- Four-stroke Otto Cycle Brief biography of Nicolaus August Otto