@article{04208315, title = {A commutativity theorem for left s-unital rings.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {769-774}, doi = {10.1155/S0161171290001065}, zbl = {0731.16021}, language = {en}, url = {http://dml.mathdoc.fr/item/04208315} }
Abujabal, Hamza A.S. A commutativity theorem for left s-unital rings.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 769-774. doi : 10.1155/S0161171290001065. http://gdmltest.u-ga.fr/item/04208315/