1. Blower, D. 1998. The Relative Contribution of Truck Drivers and Passenger Vehicle Drivers to Truck-passenger Vehicle Traffic Crashes. Publication No. UMTRI-98-25, University of Michigan Transportation Research Institute, Ann Arbor, MI.
2. Committee on Injury, Violence, and Poison Prevention and Council on School Health, 2007. School transportation safety. Pediatrics 120, 213–220.
3. A descriptive analysis of light vehicle-heavy vehicle interactions using in situ driving data;Hanowski;Accident Anal. Prev.,2007
4. Hinch, J., McCray, L., Prasad, A., Sullivan, L., Willke, D., Hott, D., Elias, J., 2002. Report to Congress: School Bus Safety: Crashworthiness Research. National Highway Traffic Safety Administration, Washington, DC.
5. Iowa Department of Education, 2007. Annual Transportation Data for Iowa Public Schools. Available at: http://www.iowa.gov/educate/content/view/288/294/1/1/. Accessed December 14, 2007.