Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1985_15_1a_17, author = {Vojvodi\'c Gradimir \v{S}e\v{s}elja Branimir}, title = {On the lattice of weak fuzzy congruence relations on algebras}, journal = {Novi Sad Journal of Mathematics}, pages = {199-207}, publisher = {mathdoc}, volume = {15}, number = {1}, year = {1985}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1985_15_1a_17/} }
Vojvodić Gradimir Šešelja Branimir. On the lattice of weak fuzzy congruence relations on algebras. Novi Sad Journal of Mathematics, Tome 15 (1985) no. 1. http://geodesic.mathdoc.fr/item/NSJOM_1985_15_1a_17/