1. Barbut M, Monjardet B (1970) Ordre et classification. Algèbre et Combinatoire. 2 tomes. Hachette, Paris
2. Becker P, Hereth Correia J (2005) The ToscanaJ suite for implementing conceptual information systems. In: Ganter B, Stumme G, Wille R (eds) Formal concept analysis. LNAI 3626. Springer, Heidelberg, pp 324–348
3. Birkhoff G (1967) Lattice theory, 3rd edn. American Mathematical Society, Providence
4. Elzinga P, Wolff KE, Poelmans J, Dedene G, Viaene S (2012) Analyzing chat conversations of pedophiles with temporal relational semantic systems. In: Domenach F, Ignatov D, Poelmans J (eds) Formal concept analysis. Contributions to the 10th international conference on formal concept analysis (ICFCA 2012). Leuven, Belgium, pp 82–101
5. Ganter B, Wille R (1999) Formal concept analysis: mathematical foundations. Springer, Heidelberg. German version: Springer, Heidelberg (1996)