TY  - JOUR
AU  - Cremona, J. E.
TI  - Hyperbolic tessellations, modular symbols, and elliptic curves over complex quadratic fields
JO  - Compositio Mathematica
PY  - 1984
SP  - 275
EP  - 324
VL  - 51
IS  - 3
PB  - Martinus Nijhoff Publishers
UR  - http://www.numdam.org/item/CM_1984__51_3_275_0/
LA  - en
ID  - CM_1984__51_3_275_0
ER  -