@article{1256054111, author = {Griffith, Phillip A.}, title = {Decomposition of pure subgroups of torsion free groups}, journal = {Illinois J. Math.}, volume = {12}, number = {4}, year = {1968}, pages = { 433-438}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054111} }
Griffith, Phillip A. Decomposition of pure subgroups of torsion free groups. Illinois J. Math., Tome 12 (1968) no. 4, pp. 433-438. http://gdmltest.u-ga.fr/item/1256054111/