@article{GDZPPN002274124, title = {Sur la notion de convergence des s\'eries doubles}, journal = {Mathematische Annalen}, volume = {102}, year = {1930}, pages = {364-367}, zbl = {56.0204.02}, url = {http://dml.mathdoc.fr/item/GDZPPN002274124} }
Leja, F. Sur la notion de convergence des séries doubles. Mathematische Annalen, Tome 102 (1930) pp. 364-367. http://gdmltest.u-ga.fr/item/GDZPPN002274124/