@article{SF_1990__41_2_135046,
     author = {F.G. Shleifer},
     title = {Looking for identities on a bicyclic semigroup with computer assistance.},
     journal = {Semigroup forum},
     pages = {173--180},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1990},
     zbl = {0701.20032},
     url = {http://geodesic.mathdoc.fr/item/SF_1990__41_2_135046/}
}