@article{GDZPPN002410575, title = {Double Fourier Series with Coefficients O (n m) -1.}, journal = {Mathematische Zeitschrift}, volume = {129}, year = {1972}, pages = {184-186}, zbl = {0223.42021}, url = {http://dml.mathdoc.fr/item/GDZPPN002410575} }
Georgakis, Constantine. Double Fourier Series with Coefficients O (n m) -1.. Mathematische Zeitschrift, Tome 129 (1972) pp. 184-186. http://gdmltest.u-ga.fr/item/GDZPPN002410575/