Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1971__2_133819, author = {J.R. Isbell}, title = {Perfect monoids.}, journal = {Semigroup forum}, pages = {95--118}, publisher = {mathdoc}, volume = {2}, year = {1971}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/SF_1971__2_133819/} }
J.R. Isbell. Perfect monoids.. Semigroup forum, Tome 2 (1971), pp. 95-118. https://geodesic-test.mathdoc.fr/item/SF_1971__2_133819/