@article{GDZPPN001259989, title = {On Sch\"utzenberger monoids in transformation semigroups.}, journal = {Semigroup forum}, volume = {38}, year = {1989}, pages = {195-202}, zbl = {0671.20060}, url = {http://dml.mathdoc.fr/item/GDZPPN001259989} }
Kossaczky, I. On Schützenberger monoids in transformation semigroups.. Semigroup forum, Tome 38 (1989) pp. 195-202. http://gdmltest.u-ga.fr/item/GDZPPN001259989/