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@article{SF_1974__7_134003, author = {Carl Eberhart}, title = {A property of orthodox semigroups.}, journal = {Semigroup forum}, pages = {86--91}, publisher = {mathdoc}, volume = {7}, year = {1974}, zbl = {0293.20056}, url = {http://geodesic.mathdoc.fr/item/SF_1974__7_134003/} }
Carl Eberhart. A property of orthodox semigroups.. Semigroup forum, Tome 7 (1974), pp. 86-91. http://geodesic.mathdoc.fr/item/SF_1974__7_134003/