@article{GDZPPN001260596, title = {Looking for identities on a bicyclic semigroup with computer assistance.}, journal = {Semigroup forum}, volume = {40}, year = {1990}, pages = {173-180}, zbl = {0701.20032}, url = {http://dml.mathdoc.fr/item/GDZPPN001260596} }
Shleifer, F.G. Looking for identities on a bicyclic semigroup with computer assistance.. Semigroup forum, Tome 40 (1990) pp. 173-180. http://gdmltest.u-ga.fr/item/GDZPPN001260596/