Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1960__19_3_114839, author = {Luh, Jiang}, title = {On the concepts of radical of semigroup having {Kernel}}, journal = {Portugaliae mathematica}, pages = {189--198}, publisher = {mathdoc}, volume = {19}, number = {3}, year = {1960}, mrnumber = {0131482}, zbl = {0095.01405}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1960__19_3_114839/} }
Luh, Jiang. On the concepts of radical of semigroup having Kernel. Portugaliae mathematica, Tome 19 (1960) no. 3, pp. 189-198. http://geodesic.mathdoc.fr/item/PORMA_1960__19_3_114839/