@article{SF_1995__51_1_135402,
     author = {J.C. Rosales},
     title = {Function minimum associated to a congruence on integral n-tuple space.},
     journal = {Semigroup forum},
     pages = {87--96},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {1995},
     zbl = {0831.20081},
     url = {http://geodesic.mathdoc.fr/item/SF_1995__51_1_135402/}
}