1. Crowder, J. (2010). Operative Information Software Agents (OISA) for intelligence processing. Proceedings of the 12th annual International Conference on Artificial Intelligence, Las Vegas, NV.
2. Kosko, G. (1986). Fuzzy cognitive maps. International Journal of Man-Machine Studies, 24, 65–75.
3. Hopfield, J. (1984). Neurons with graded response have collective computational properties like those of two-state neurons. In C. Nicolini (Ed.), Modeling and analysis in biomedicine. New York: World Scientific Publishing.
4. Hutchinson, J., Koch, C., Luo, J., & Mead, C. (1988). Computing motion using analog and binary resistive networks. Computer, 21(3), 52–63.
5. Kahana, M., Howard, M., & Polyn, S. (2008). Associative retrieval processes in episodic memory. In H. L. Roediger III (Ed.), Cognitive psychology of memory (Vol. 2 of Learning and memory: A comprehensive reference, 4 vols., J. Byrne, Editor). Oxford: Elsevier.