TY  - JOUR
AU  - Silverman, Joseph H.
TI  - The field of definition for dynamical systems on $\mathbb {P}^1$
JO  - Compositio Mathematica
PY  - 1995
SP  - 269
EP  - 304
VL  - 98
IS  - 3
PB  - Kluwer Academic Publishers
UR  - http://archive.numdam.org/item/CM_1995__98_3_269_0/
LA  - en
ID  - CM_1995__98_3_269_0
ER  -