1. Dick, J. P. Using Contexts to Represent Text. In W.M. Tepfenhart, J.P. Dick & J.F. Sowa (Eds.), Conceptual Structures: Current Practices, (pp. 196–213). Springer-Verlag, 1994.
2. Esch, J. Contexts and Concepts, Abstraction Duals. In W.M. Tepfenhart, J.P. Dick & J.F. Sowa (Eds.), Conceptual Structures: Current Practices, (pp. 175–184). Springer-Verlag, 1994.
3. Esch, J. Contexts, Canons and Coreferent Types. In W.M. Tepfenhart, J.P. Dick & J.F. Sowa (Eds.), Conceptual Structures: Current Practices, (pp. 185–195). Springer-Verlag, 1994.
4. Esch, J. W. Contexts as white box concepts. In Proceedings of the 1st Int. Conf. on Conceptual Structures, G.W. Mineau, B. Moulin & J.F. Sowa (Ed.), Université Laval, pp. 17–29, 1993.
5. Godin, R., Mineau, G., Missaoui, R. & Mili, H. Méthodes de classification conceptuelle basées sur le treillis de Galois et applications. Revue d'Intelligence Artificielle, 9(2), 105–137, 1995.