%0 Journal Article %A Carlitz, L. %T The singular series for a single square %J Portugaliae mathematica %D 1957 %P 7-10 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1957__16_1_114780/ %G en %F PORMA_1957__16_1_114780