@article{GDZPPN001260219,
title = {A characterization of left cancellative monoids by flatness properties.},
journal = {Semigroup forum},
volume = {40},
year = {1990},
pages = {109-112},
zbl = {0682.20048},
url = {http://dml.mathdoc.fr/item/GDZPPN001260219}
}
Bulman-Fleming, S.; McDowell, k. A characterization of left cancellative monoids by flatness properties.. Semigroup forum, Tome 40 (1990) pp. 109-112. http://gdmltest.u-ga.fr/item/GDZPPN001260219/