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@article{MZ_1974__140_172149, author = {R\"udiger G\"obel}, title = {The {Characteristic} {Subgroups} of the {Baer-Specker} {Group.}}, journal = {Mathematische Zeitschrift}, pages = {289--292}, publisher = {mathdoc}, volume = {140}, year = {1974}, zbl = {0281.20026}, url = {http://geodesic.mathdoc.fr/item/MZ_1974__140_172149/} }
Rüdiger Göbel. The Characteristic Subgroups of the Baer-Specker Group.. Mathematische Zeitschrift, Tome 140 (1974), pp. 289-292. http://geodesic.mathdoc.fr/item/MZ_1974__140_172149/