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@article{SF_1996__52_3_135445, author = {T.S. Blyth and M.H. Almeida-Santos}, title = {Invariant semigroups of othodox semigroups.}, journal = {Semigroup forum}, pages = {163--180}, publisher = {mathdoc}, volume = {52}, number = {3}, year = {1996}, zbl = {0846.20066}, url = {http://geodesic.mathdoc.fr/item/SF_1996__52_3_135445/} }
T.S. Blyth; M.H. Almeida-Santos. Invariant semigroups of othodox semigroups.. Semigroup forum, Tome 52 (1996) no. 3, pp. 163-180. http://geodesic.mathdoc.fr/item/SF_1996__52_3_135445/