TY  - JOUR
AU  - V. V. Basov
TI  - A generalized normal form and formal equivalence of two-dimensional systems with quadratic zero approximation: III
JO  - Differencialʹnye uravneniâ
PY  - 2006
SP  - 308
EP  - 319
VL  - 42
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2006_42_3_a2/
LA  - ru
ID  - DE_2006_42_3_a2
ER  -