TY  - JOUR
AU  - S. Walcher
TI  - Multi-Parameter Symmetries of First Order Ordinary Differential Equations
JO  - Journal of Lie theory
PY  - 1999
SP  - 249
EP  - 269
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JLT_1999_9_1_a10/
ID  - JLT_1999_9_1_a10
ER  -