@article{05231634, title = {On transformation semigroups which are }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2006}, year = {2006}, doi = {10.1155/IJMMS/2006/12757}, zbl = {1130.20049}, language = {en}, url = {http://dml.mathdoc.fr/item/05231634} }
Nenthein, S.; Kemprasit, Y. On transformation semigroups which are . International Journal of Mathematics and Mathematical Sciences, Tome 2006 (2006) . doi : 10.1155/IJMMS/2006/12757. http://gdmltest.u-ga.fr/item/05231634/