@article{DMGAA_2013_33_2_a9,
     author = {Heidari, Dariush and Amooshahi, Marzieh},
     title = {Transformation semigroups associated to {\ensuremath{\Gamma}-semigroups}},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {249--259},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2013_33_2_a9/}
}