TY  - JOUR
AU  - Kenneth S. Williams
TI  - Quadratic forms and a product-to-sum formula
JO  - Acta Arithmetica
PY  - 2013
SP  - 79
EP  - 97
VL  - 158
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa158-1-5/
DO  - 10.4064/aa158-1-5
LA  - en
ID  - 10_4064_aa158_1_5
ER  -