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@article{SF_1974__9_134083, author = {C.F. Fennemore}, title = {A subdirectly irreducible band accepting a = a.}, journal = {Semigroup forum}, pages = {271--274}, publisher = {mathdoc}, volume = {9}, year = {1974}, zbl = {0292.20060}, url = {http://geodesic.mathdoc.fr/item/SF_1974__9_134083/} }
C.F. Fennemore. A subdirectly irreducible band accepting a = a.. Semigroup forum, Tome 9 (1974), pp. 271-274. http://geodesic.mathdoc.fr/item/SF_1974__9_134083/