@article{1077473866, author = {Levi, F. W.}, title = {Rearrangement of convergent series}, journal = {Duke Math. J.}, volume = {13}, number = {1}, year = {1946}, pages = { 579-585}, language = {en}, url = {http://dml.mathdoc.fr/item/1077473866} }
Levi, F. W. Rearrangement of convergent series. Duke Math. J., Tome 13 (1946) no. 1, pp. 579-585. http://gdmltest.u-ga.fr/item/1077473866/