%0 Journal Article %A Tadashige Okada %T On an extension of a theorem of S. Chowla %J Acta Arithmetica %D 1980 %P 341-345 %V 38 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-38-4-341-345/ %R 10.4064/aa-38-4-341-345 %G en %F 10_4064_aa_38_4_341_345