1. South Coast Air Quality Management District, The Casefor Charging Ahead with Electric Vehicles in Southern California, [On-line], http://www.aqmd.gov/monthly/white.html, June 12, 1997.
2. South Coast Air Quality Management District , Smog and Health - An Introduction, [On-line], http://www.aqmd.gov/smog/inhealth.html, June 12, 1997.