TY  - JOUR
AU  - M. Sabatini
TI  - Quadratic Isochronous centers commute
JO  - Applicationes Mathematicae
PY  - 1999
SP  - 357
EP  - 362
VL  - 26
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/am-26-3-357-362/
DO  - 10.4064/am-26-3-357-362
LA  - en
ID  - 10_4064_am_26_3_357_362
ER  -