Johnston, Roger G., Garcia, Anthony R. E. (2003), "Analyzing Vulnerability Results for Tags and Tamper-Indicating Seals," Proceedings of the Seventh U.S. Army Conference on Applied Statistics, (Barry A. Bodt, Edward J. Wegman, eds.), ACAS01/JohnstonRoger/JohnstonRoger.paper.pdf

Johnston, Roger G., Schroder, Shayla D., Mallawaaratchy, Rajika (2003), "Statistical Artifacts in the Ratio of Discrete Quantities," Proceedings of the Seventh U.S. Army Conference on Applied Statistics, (Barry A. Bodt, Edward J. Wegman, eds.), ACAS01/JohnstonRoger/JohnstonRoger.presentation.pdf