1. California Air Resources Board, Research Division, 1001 I Street, P.O. Box 2815, Sacramento, California 95815
2. Engine, Fuels, and Emissions Engineering (EEFE) Inc., Rancho Cordova, California 95827
3. National Research Council of Canada, Building M-9, 1200 Montreal Road, Ottawa, ON K1A 0R6
4. AVL GmBH, Hans-List-Platz 1, Graz, Austria 8045