Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1974__7_134009, author = {P.A. Grillet}, title = {Left coset extensions.}, journal = {Semigroup forum}, pages = {200--263}, publisher = {mathdoc}, volume = {7}, year = {1974}, zbl = {0296.20032}, url = {http://geodesic.mathdoc.fr/item/SF_1974__7_134009/} }
P.A. Grillet. Left coset extensions.. Semigroup forum, Tome 7 (1974), pp. 200-263. http://geodesic.mathdoc.fr/item/SF_1974__7_134009/