"Taming the Diversity of Information Assurance & Security," with Sandra Riela, IAS consultant and Trinity University alumna, The Journal of Computing Sciences in Colleges, Vol. 23, No. 4, April 2008.
"A Content Functional Approach To Intelligence in Robotic Systems," with Gerald N. Pitts, Alan D. Brock, and Kent B. Landrum, Modeling and Simulation, 2002 International Conference on Modeling and Simulation: International Association of Science and Technology for Development, May 2002.
"The Eight-Minute Halting Problem," ACM SIGSCS Bulletin, Vol. 30, No. 2, June 1998.
"Historical Perspectives on the Computing Curriculum," with Michael Goldweber, John Impagliazzo, et al., Integrating Technology into Computer Science Education, ITiCSE 97, Uppsala, Sweden, Fall 1997.
Constructivity in Computer Science, (edited with M.J. O'Donnell), lecture notes in Computer Science No. 613, Springer-Verlag, Berlin, 1992.