1. The mortality consequences of raising the speed limit to 65 mph on rural interstates;Baum;American Journal of Public Health,1989
2. Three field studies of driver speed adaptation;Casey;Human Factors,1987
3. Changes in speed and speed adaptation following increase in national maximum speed limit;Casey,1988
4. Stiff fines speed Massachusetts motorist into court;Ferson;Boston Globe,1988
5. Statistical methods for rates and proportions;Fleiss,1973