B. Ganter and R. Wille, Formal Concept Analysis: Mathematical Foundations, 1999.

R. Belohlavek, What is a Fuzzy Concept Lattice? II, pp.19-26, 2011.
DOI : 10.1007/978-3-642-21881-1_4

B. Ganter and S. O. Kuznetsov, Pattern Structures and Their Projections, Concept. Struct. Broadening Base. LNCS, vol.2120, pp.129-142, 2001.
DOI : 10.1007/3-540-44583-8_10
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.57.7648

R. Belohlávek, Lattices generated by binary fuzzy relations (extended abstract) In: Int. Conf. Fuzzy Set Theory Appl, p.11, 1998.

M. Kaytoue, S. O. Kuznetsov, A. Napoli, and S. Duplessis, Mining gene expression data with pattern structures in formal concept analysis, Information Sciences, vol.181, issue.10, pp.1989-2001, 2011.
DOI : 10.1016/j.ins.2010.07.007
URL : https://hal.archives-ouvertes.fr/hal-00541100

V. V. Pankratieva and S. O. Kuznetsov, Relations between proto-fuzzy concepts, crisply generated fuzzy concepts, and interval pattern structures, Fundam. Informaticae, vol.115, issue.4, pp.265-277, 2012.

H. Soldano and G. Santini, Graph abstraction for closed pattern mining in attributed network, Eur. Conf. Artif. Intell. (ECAI), pp.849-854, 2014.