Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1986__36_2_a7, author = {Jakub{\'\i}k, J\'an}, title = {Covering graphs and subdirect decompositions of partially ordered sets}, journal = {Mathematica slovaca}, pages = {151--162}, publisher = {mathdoc}, volume = {36}, number = {2}, year = {1986}, mrnumber = {849706}, zbl = {0603.06001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1986__36_2_a7/} }
Jakubík, Ján. Covering graphs and subdirect decompositions of partially ordered sets. Mathematica slovaca, Tome 36 (1986) no. 2, pp. 151-162. http://geodesic.mathdoc.fr/item/MASLO_1986__36_2_a7/