@article{1077492064, author = {Shiffman, Max}, title = {The ring of automorphisms of an Abelian group}, journal = {Duke Math. J.}, volume = {6}, number = {1}, year = {1940}, pages = { 579-597}, language = {en}, url = {http://dml.mathdoc.fr/item/1077492064} }
Shiffman, Max. The ring of automorphisms of an Abelian group. Duke Math. J., Tome 6 (1940) no. 1, pp. 579-597. http://gdmltest.u-ga.fr/item/1077492064/