Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1988_18_2a_18, author = {\v{S}e\v{s}elja Branimir and Vojvodi\'c Gradimir}, title = {Weak congruences of a lattice}, journal = {Novi Sad Journal of Mathematics}, pages = {205-209}, publisher = {mathdoc}, volume = {18}, number = {2}, year = {1988}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1988_18_2a_18/} }
Šešelja Branimir; Vojvodić Gradimir. Weak congruences of a lattice. Novi Sad Journal of Mathematics, Tome 18 (1988) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_1988_18_2a_18/