@article{GDZPPN001255673, title = {A Noetherian and confluent rewrite system for idempotent semigroups.}, journal = {Semigroup forum}, volume = {24}, year = {1982}, pages = {83-110}, zbl = {0493.68087}, url = {http://dml.mathdoc.fr/item/GDZPPN001255673} }
Siekmann, J.; Szabó, P. A Noetherian and confluent rewrite system for idempotent semigroups.. Semigroup forum, Tome 24 (1982) pp. 83-110. http://gdmltest.u-ga.fr/item/GDZPPN001255673/