@article{GDZPPN002446332, title = {Bedingt konvergente Reihen}, journal = {Mathematische Zeitschrift}, volume = {24}, year = {1926}, pages = {212-214}, zbl = {51.0179.03}, url = {http://dml.mathdoc.fr/item/GDZPPN002446332} }
Threlfall, W. Bedingt konvergente Reihen. Mathematische Zeitschrift, Tome 24 (1926) pp. 212-214. http://gdmltest.u-ga.fr/item/GDZPPN002446332/