TY  - JOUR
AU  - V. L. Rabtsevich
TI  - Necessary and sufficient conditions for formal reducibility
JO  - Differencialʹnye uravneniâ
PY  - 1985
SP  - 2006
EP  - 2007
VL  - 21
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1985_21_11_a23/
LA  - ru
ID  - DE_1985_21_11_a23
ER  -