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@article{SF_1974__9_134061, author = {J.K. Luedeman}, title = {The generalized translational hull of a semigroup.}, journal = {Semigroup forum}, pages = {76--83}, publisher = {mathdoc}, volume = {9}, year = {1974}, zbl = {0291.20076}, url = {http://geodesic.mathdoc.fr/item/SF_1974__9_134061/} }
J.K. Luedeman. The generalized translational hull of a semigroup.. Semigroup forum, Tome 9 (1974), pp. 76-83. http://geodesic.mathdoc.fr/item/SF_1974__9_134061/