TY  - JOUR
AU  - Vítězslav Kala
AU  - Valentin Blomer
TI  - On the Rank of Universal Quadratic Forms over Real Quadratic Fields
JO  - Documenta mathematica
PY  - 2018
SP  - 15
EP  - 34
VL  - 23
UR  - http://geodesic.mathdoc.fr/articles/10.4171/dm/611/
DO  - 10.4171/dm/611
ID  - 10_4171_dm_611
ER  -