Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1979__29_2_a3, author = {\v{S}ulka, Robert}, title = {Remark on partially ordered sets, universal algebras and semigroups}, journal = {Mathematica slovaca}, pages = {131--139}, publisher = {mathdoc}, volume = {29}, number = {2}, year = {1979}, mrnumber = {578285}, zbl = {0414.20052}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1979__29_2_a3/} }
Šulka, Robert. Remark on partially ordered sets, universal algebras and semigroups. Mathematica slovaca, Tome 29 (1979) no. 2, pp. 131-139. http://geodesic.mathdoc.fr/item/MASLO_1979__29_2_a3/