TY  - JOUR
AU  - Irving Kaplansky
TI  - Composition of binary quadratic forms
JO  - Studia Mathematica
PY  - 1968
SP  - 523
EP  - 530
VL  - 31
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-31-5-523-530/
DO  - 10.4064/sm-31-5-523-530
LA  - en
ID  - 10_4064_sm_31_5_523_530
ER  -