Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1982__18_3_a4, author = {Kope\v{c}ek, Ivan}, title = {Distinguishing subsets in lattices}, journal = {Archivum mathematicum}, pages = {145--149}, publisher = {mathdoc}, volume = {18}, number = {3}, year = {1982}, mrnumber = {682102}, zbl = {0518.06002}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1982__18_3_a4/} }
Kopeček, Ivan. Distinguishing subsets in lattices. Archivum mathematicum, Tome 18 (1982) no. 3, pp. 145-149. http://geodesic.mathdoc.fr/item/ARM_1982__18_3_a4/