@article{GDZPPN001260685,
title = {F-disjunctive congruences and a generalization of monoids with length.},
journal = {Semigroup forum},
volume = {40},
year = {1990},
pages = {291-306},
zbl = {0703.20057},
url = {http://dml.mathdoc.fr/item/GDZPPN001260685}
}
Reis, C.M. F-disjunctive congruences and a generalization of monoids with length.. Semigroup forum, Tome 40 (1990) pp. 291-306. http://gdmltest.u-ga.fr/item/GDZPPN001260685/