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@article{SF_1990__40_1_135009, author = {S. Bulman-Fleming and k. McDowell}, title = {A characterization of left cancellative monoids by flatness properties.}, journal = {Semigroup forum}, pages = {109--112}, publisher = {mathdoc}, volume = {40}, number = {1}, year = {1990}, zbl = {0682.20048}, url = {http://geodesic.mathdoc.fr/item/SF_1990__40_1_135009/} }
S. Bulman-Fleming; k. McDowell. A characterization of left cancellative monoids by flatness properties.. Semigroup forum, Tome 40 (1990) no. 1, pp. 109-112. http://geodesic.mathdoc.fr/item/SF_1990__40_1_135009/