TY  - JOUR
AU  - V. V. Basov
TI  - The Generalized Normal Form and Formal Equivalence of Systems of Differential Equations with Zero Approximation $(x_2^3,-x_1^3)$
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 1011
EP  - 1022
VL  - 40
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_8_a0/
LA  - ru
ID  - DE_2004_40_8_a0
ER  -