%0 Journal Article %A R. Rankin %T Generalized Jacobsthal sums and sums of squares %J Acta Arithmetica %D 1987 %P 5-14 %V 49 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-49-1-5-14/ %R 10.4064/aa-49-1-5-14 %G en %F 10_4064_aa_49_1_5_14