@article{GDZPPN00125765X, title = {A nonlocally compact nondiscrete topology for the a-bicyclic semigroup.}, journal = {Semigroup forum}, volume = {31}, year = {1985}, pages = {372-374}, zbl = {0567.22002}, url = {http://dml.mathdoc.fr/item/GDZPPN00125765X} }
Selden, A.A. A nonlocally compact nondiscrete topology for the a-bicyclic semigroup.. Semigroup forum, Tome 31 (1985) pp. 372-374. http://gdmltest.u-ga.fr/item/GDZPPN00125765X/