1. Restraint system usage in the traffic population 1988 annual report;Bowman,1989
2. Restraint system use in 19 U.S. cities 1989 annual report;Datta,1990
3. Researchers scrutinize air bag crashes in the seven-county database;Insurance Institute for Highway Safety;27,1992
4. Occupant restraint monitoring program;Reinfurt,1991
5. Use of automatic safety belts in Michigan;Streff;Journal of Safety Research,1991