Marianne Huchard Mohamed Rouane Hacene Cyril Roume Petko Valtchev Relational concept discovery in structured datasets. 39-76 2007 49 Ann. Math. Artif. Intell. 1-4 http://dx.doi.org/10.1007/s10472-007-9056-3 db/journals/amai/amai49.html#HuchardHRV07