1. Median algebras
2. Bandler, W., and L. J. Kohout. 1979. “The Use of New Relational Products in Clinical Modelling.” In General Systems Research: A Science, a Methodology, a Technology, Proceedings of the 1979 North American Meeting of the Society for General Systems Research, Society for General System Research, 240–246. Louisville, KY.
3. Bandler, W., and L. J. Kohout. 1981. “The Identification of Hierarchies in Symptoms and Patients Through Computation of Fuzzy Relational Products.” In BCS'81: Information Technology for the Eighties, Proceedings of the Conference of the British Computer Society, edited by R.D. Parslow, 191–194. London: Heyden and Sons.
4. Bandler, W., and L. J. Kohout. 1986. “A Survey of Fuzzy Relational Products in Their Applicability to Medicine and Clinical Psychology.” In Knowledge Representation in Medicine and Clinical Behavioural Science, edited by L. J. Kohout, and W. Bandler, 107–118. Tunbridge Wells-Cambridge, MA: Abacus Press.