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@article{SF_1996__53_2_135470, author = {Xiang-Yun Xie and Ming-Fen Wu}, title = {On the ideal extensions in ordered semigroups.}, journal = {Semigroup forum}, pages = {63--71}, publisher = {mathdoc}, volume = {53}, number = {2}, year = {1996}, zbl = {0848.06012}, url = {http://geodesic.mathdoc.fr/item/SF_1996__53_2_135470/} }
Xiang-Yun Xie; Ming-Fen Wu. On the ideal extensions in ordered semigroups.. Semigroup forum, Tome 53 (1996) no. 2, pp. 63-71. http://geodesic.mathdoc.fr/item/SF_1996__53_2_135470/