@article{1183524560, author = {baumslag, Gilbert}, title = {A non-Hopfian group}, journal = {Bull. Amer. Math. Soc.}, volume = {68}, number = {6}, year = {1962}, pages = { 196-198}, language = {en}, url = {http://dml.mathdoc.fr/item/1183524560} }
baumslag, Gilbert. A non-Hopfian group. Bull. Amer. Math. Soc., Tome 68 (1962) no. 6, pp. 196-198. http://gdmltest.u-ga.fr/item/1183524560/