@article{GDZPPN002376156, title = {Note on Hypothesis K of Hardy and Littlewood}, journal = {Mathematische Zeitschrift}, volume = {40}, year = {1936}, pages = {348-348}, zbl = {61.1063.01}, url = {http://dml.mathdoc.fr/item/GDZPPN002376156} }
Chowla, S. and Sastry, S. Note on Hypothesis K of Hardy and Littlewood. Mathematische Zeitschrift, Tome 40 (1936) p. 348. http://gdmltest.u-ga.fr/item/GDZPPN002376156/