@article{03987487, title = {A hypervaluation of a ring onto a totally ordered non-cancellative semigroup without zero divisors.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {821-823}, doi = {10.1155/S0161171286001023}, zbl = {0611.16002}, language = {en}, url = {http://dml.mathdoc.fr/item/03987487} }
Papadopoulos, John. A hypervaluation of a ring onto a totally ordered non-cancellative semigroup without zero divisors.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 821-823. doi : 10.1155/S0161171286001023. http://gdmltest.u-ga.fr/item/03987487/