@article{GDZPPN001264788, title = {On monoids over which all strongly flat cyclic right acts are projective.}, journal = {Semigroup forum}, volume = {53}, year = {1996}, pages = {241-246}, zbl = {0844.20051}, url = {http://dml.mathdoc.fr/item/GDZPPN001264788} }
Kilp, M. On monoids over which all strongly flat cyclic right acts are projective.. Semigroup forum, Tome 53 (1996) pp. 241-246. http://gdmltest.u-ga.fr/item/GDZPPN001264788/