1. Use of speed limiters in cars for increased safety and a better environment;Almquist;Transportation Research Record,1991
2. Barth, M., An, F., Younglove, T., Levine, C., Scora, G., Ross, M., Wenzel, T., 1999. The development of a comprehensive modal emissions model. Final report submitted to the National Cooperative Highway Research Program, Washington, DC.
3. Real-world carbondioxide impacts of traffic congestion;Barth;Transportation Research Record,2008
4. Modal emissions modeling: a physical approach;Barth;Transportation Research Record,1996
5. Using GPS technology to relate macroscopic and microscopic traffic parameters;Barth;Transportation Research Record,1996