| "Macdonald's Theorem for Quadratic Jordan Algebras," Pacific Journal of Mathematics, 35, (1970), 681-706 (co-author). |
| "Hereditary Radicals in Jordan Rings," Proceedings of the American Mathematical Society, 33, (1972), 302-306. |
| "Extending a Jordan Ring Homomorphism," Proceedings of the American Mathematical Society, 40, (1975), 57-59. |
| Sentence Helpers, Media Materials, Inc., Baltimore (1982) (co-author). (This is software whose purpose is to teach the formation of properly constructed sentences.) |
| "Induction and Recursion," Collegiate Microcomputer, v.2, n.2, (May 1984). |
| "Artificial Intelligence," The Goucher Quarterly, v.63, n.4, (Summer 1985). |
| "The Relation between Parsimonious Covering Theory and Competition-Based Spreading Activation," TR-1580, University of Maryland Department of Computer Science, July 1986. |
| "A Case Study in Building an Expert System," Proceedings of the Third Annual Eastern Small College Computing Conference, October 1987. (Reprinted in the Journal of Computing in Small Colleges, February 1988). |
| Expert System Development, Q.E.D. Information Services, (1988) (co-author). |
| Intelligent Systems Design, John Wiley & Sons, (1990) (co-author). |
| "Fibonacci Melodies," Humanistic Mathematics Journal, 14, (November 1996), 36-39 |
| Cryptological Mathematics, Mathematical Association of America Press, (2000) |
| "International Mathematical Experiences," Math Horizons, (September 2006) |
| "A Cryptology Course at Bletchley Park," Cryptologia, v.31, n.2, (April 2007) |
| "Cryptology in a Liberal Arts Setting," Journal of Mathematics and Computer Education, v.41, n.3,(Fall 2007). |