%0 Journal Article
%A Kenneth S. Williams
%T Quadratic forms and a product-to-sum formula
%J Acta Arithmetica
%D 2013
%P 79-97
%V 158
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa158-1-5/
%R 10.4064/aa158-1-5
%G en
%F 10_4064_aa158_1_5