@article{GDZPPN001249150, title = {On semigroups admitting ring structure II.}, journal = {Semigroup forum}, volume = {7}, year = {1974}, pages = {189-197}, zbl = {0262.20069}, url = {http://dml.mathdoc.fr/item/GDZPPN001249150} }
Satyanarayana, M. On semigroups admitting ring structure II.. Semigroup forum, Tome 7 (1974) pp. 189-197. http://gdmltest.u-ga.fr/item/GDZPPN001249150/