@article{JRAM_1977__292_151876,
     author = {S. Chowla and M. Cowles},
     title = {On the coefficients cn in the expansion ... .},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {115--116},
     publisher = {mathdoc},
     volume = {292},
     year = {1977},
     zbl = {0347.10011},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1977__292_151876/}
}