@article{GDZPPN002415232, title = {The Characteristic Subgroups of the Baer-Specker Group.}, journal = {Mathematische Zeitschrift}, volume = {136}, year = {1974}, pages = {289-292}, zbl = {0281.20026}, url = {http://dml.mathdoc.fr/item/GDZPPN002415232} }
Göbel, Rüdiger. The Characteristic Subgroups of the Baer-Specker Group.. Mathematische Zeitschrift, Tome 136 (1974) pp. 289-292. http://gdmltest.u-ga.fr/item/GDZPPN002415232/