TY  - JOUR
AU  - Kenneth Hardy
AU  - Kenneth Williams
TI  - The class number of pairs of positive-definite binary quadratic forms
JO  - Acta Arithmetica
PY  - 1989
SP  - 103
EP  - 117
VL  - 52
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa-52-2-103-117/
DO  - 10.4064/aa-52-2-103-117
LA  - en
ID  - 10_4064_aa_52_2_103_117
ER  -