Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1977__15_134262, author = {K.E. Osondu}, title = {Extensions of homomorphisms of subsemigroups of a group.}, journal = {Semigroup forum}, pages = {311--318}, publisher = {mathdoc}, volume = {15}, year = {1977}, zbl = {0379.20053}, url = {http://geodesic.mathdoc.fr/item/SF_1977__15_134262/} }
K.E. Osondu. Extensions of homomorphisms of subsemigroups of a group.. Semigroup forum, Tome 15 (1977), pp. 311-318. http://geodesic.mathdoc.fr/item/SF_1977__15_134262/