Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1985__35_3_a3, author = {Korec, Ivan}, title = {Disjoint covering systems and product-invariant relations}, journal = {Mathematica slovaca}, pages = {233--237}, publisher = {mathdoc}, volume = {35}, number = {3}, year = {1985}, mrnumber = {808357}, zbl = {0588.10065}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1985__35_3_a3/} }
Korec, Ivan. Disjoint covering systems and product-invariant relations. Mathematica slovaca, Tome 35 (1985) no. 3, pp. 233-237. http://geodesic.mathdoc.fr/item/MASLO_1985__35_3_a3/