@article{GDZPPN002286637, title = {A Summability Theorem in Countable Toral Groups.}, journal = {Mathematische Annalen}, volume = {136}, year = {1958}, pages = {354-359}, zbl = {0086.31904}, url = {http://dml.mathdoc.fr/item/GDZPPN002286637} }
Mahowald, M. A Summability Theorem in Countable Toral Groups.. Mathematische Annalen, Tome 136 (1958) pp. 354-359. http://gdmltest.u-ga.fr/item/GDZPPN002286637/