TY  - JOUR
AU  - N. N. Ladis
TI  - Normal forms of completely integrable systems
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1994
EP  - 1999
VL  - 12
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_11_a8/
LA  - ru
ID  - DE_1976_12_11_a8
ER  -