1. Barbut, M., Monjardet, B.: Ordre et classification. Classiques Hachette (1970)
2. Berry, A., Sigayret, A.: Representing a concept lattice by a graph. In: Proc. Discrete Maths and Data Mining Workshop, 2nd SIAM Conference on Data Mining (SDM 2002), Arlington, VA, USA (April 2002);
3. Discrete Applied Mathematics, special issue on Discrete Maths and Data Mining 144(1-2), 27???42 (2004)
4. Lecture Notes in Computer Science;A. Berry,2002
5. Berry, A., Bordat, J.-P., Sigayret, A.: Concepts can’t afford to stammer. In: INRIA Proc. International Conference Journées de l’Informatique Messine (JIM 2003), Metz (France), Submitted as ‘A local approach to concept generation’ (September 2003)