@article{GDZPPN002373327, title = {Some new cases of Parseval's Theorem}, journal = {Mathematische Zeitschrift}, volume = {34}, year = {1932}, pages = {620-633}, zbl = {58.0274.03}, url = {http://dml.mathdoc.fr/item/GDZPPN002373327} }
Littlewood, J.E., and G. H. Hardy,. Some new cases of Parseval's Theorem. Mathematische Zeitschrift, Tome 34 (1932) pp. 620-633. http://gdmltest.u-ga.fr/item/GDZPPN002373327/