TY  - JOUR
AU  - E. M. Vorob'ev
TI  - Reduction of differential equations with symmetries
JO  - Izvestiya. Mathematics 
PY  - 1981
SP  - 73
EP  - 86
VL  - 17
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1981_17_1_a2/
LA  - en
ID  - IM2_1981_17_1_a2
ER  -