1. 1992 AMA survey on workplace drug testing and drug abuse policies;American Management Association,1992
2. Accuracy in transit drug testing: A probabilistic analysis;Barnum;Transportation Research Record,1990
3. Determining transit drug test accuracy: The multidrug case;Barnum;Transportation Research Record,1991
4. Employee drug testing: Lessons to be learned from the transportation initiative;Bliss;Federal Bar News & Journal,1988
5. Drug testing: Regulatory and legal issues confronted by the Department of Transportation;Eisner;Federal Bar News & Journal,1988