Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1982__25_134582, author = {N.M. Khan}, title = {Epimorphisms, dominions and varieties of semigroups.}, journal = {Semigroup forum}, pages = {331--338}, publisher = {mathdoc}, volume = {25}, year = {1982}, zbl = {0496.20049}, url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134582/} }
N.M. Khan. Epimorphisms, dominions and varieties of semigroups.. Semigroup forum, Tome 25 (1982), pp. 331-338. http://geodesic.mathdoc.fr/item/SF_1982__25_134582/