• Ph.D., University of Denver

    • "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.