TY  - JOUR
AU  - A. Schinzel
TI  - A Positive Definite Binary Quadratic Form
 as a Sum of Five Squares of Linear Forms
 (Completion of Mordell's Proof)
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2013
SP  - 23
EP  - 26
VL  - 61
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba61-1-3/
DO  - 10.4064/ba61-1-3
LA  - en
ID  - 10_4064_ba61_1_3
ER  -