TY  - JOUR
AU  - Don Zagier
TI  - Modular Forms Associated to Real Quadratic Fields.
JO  - Inventiones mathematicae
PY  - 1975
SP  - 1
EP  - 46
VL  - 30
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1975__30_142343/
ID  - IM_1975__30_142343
ER  -