@article{MZ_1932__34_168331,
     author = {J.E., and G. H. Hardy, Littlewood},
     title = {Some new cases of {Parseval's} {Theorem}},
     journal = {Mathematische Zeitschrift},
     pages = {620--633},
     year = {1932},
     volume = {34},
     zbl = {58.0274.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1932__34_168331/}
}