@article{GDZPPN001264036, title = {Monoids over which all flat cyclic right acts are strongly flat.}, journal = {Semigroup forum}, volume = {51}, year = {1995}, pages = {233-242}, zbl = {0824.20054}, url = {http://dml.mathdoc.fr/item/GDZPPN001264036} }
Bulman-Fleming, S.; Normak, P. Monoids over which all flat cyclic right acts are strongly flat.. Semigroup forum, Tome 51 (1995) pp. 233-242. http://gdmltest.u-ga.fr/item/GDZPPN001264036/