@article{GDZPPN001264265, title = {Function minimum associated to a congruence on integral n-tuple space.}, journal = {Semigroup forum}, volume = {51}, year = {1995}, pages = {87-96}, zbl = {0831.20081}, url = {http://dml.mathdoc.fr/item/GDZPPN001264265} }
Rosales, J.C. Function minimum associated to a congruence on integral n-tuple space.. Semigroup forum, Tome 51 (1995) pp. 87-96. http://gdmltest.u-ga.fr/item/GDZPPN001264265/