1. National border patrol strategy: Message from the commissioner, U.S. Customs and Border Protection, Office of Border Patrol and the Office of Policy and Planning, Washington, D.C., 2004.
2. in: (Editor), An Introduction to Spatial Queues, CRC Press, 1995, Chapter 4, pp. 103–118.
3. , An introduction to the theory of point processes, 2nd ed., Springer, 2003.
4. Department of Homeland Security, A Review of remote surveillance technology along the US land borders, Department of Homeland Security Office of Inspector General OIG 06-15, 2005.