1. Abraham , F. D. 1991, August De Arte Combinatoria Psychologia L. Vandervert Establishing dynamical systems theory in psychology . Keynote panel conducted at Inaugural Conference for a Society for Chaos Theory in Psychology 1991, San Francisco, CA
2. Abraham , F. D. 1992a, August Invited address-no title L. Vandervert Conducted at the American Psychological Association National Convention, Washington, DC
3. Abraham , F. D. 1992b, August F. Abraham Chaos and Bifucations-A Metamodeling Strategy for Psychology , conducted at the American Psychological Association National Convention, Washington, DC