@article{102446, author = {Jarom\'\i r Duda}, title = {Relation products of congruences and factor congruences}, journal = {Czechoslovak Mathematical Journal}, volume = {41}, year = {1991}, pages = {155-159}, zbl = {0790.08001}, mrnumber = {1087636}, language = {en}, url = {http://dml.mathdoc.fr/item/102446} }
Duda, Jaromír. Relation products of congruences and factor congruences. Czechoslovak Mathematical Journal, Tome 41 (1991) pp. 155-159. http://gdmltest.u-ga.fr/item/102446/
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