@article{1183730619, author = {Hall, Marshall}, title = {The Word Problem for Semigroups with Two Generators}, journal = {J. Symbolic Logic}, volume = {14}, number = {1}, year = {1949}, pages = { 115-118}, language = {en}, url = {http://dml.mathdoc.fr/item/1183730619} }
Hall, Marshall. The Word Problem for Semigroups with Two Generators. J. Symbolic Logic, Tome 14 (1949) no. 1, pp. 115-118. http://gdmltest.u-ga.fr/item/1183730619/