@article{1102968284, author = {Hall, Robert E.}, title = {The translational hull of an $N$-semigroup.}, journal = {Pacific J. Math.}, volume = {43}, number = {3}, year = {1972}, pages = { 379-389}, language = {en}, url = {http://dml.mathdoc.fr/item/1102968284} }
Hall, Robert E. The translational hull of an $N$-semigroup.. Pacific J. Math., Tome 43 (1972) no. 3, pp. 379-389. http://gdmltest.u-ga.fr/item/1102968284/