TY  - JOUR
AU  - P. P. Veresovich
TI  - Nonautonomous two-dimensional quadratic systems that are equivalent to linear systems
JO  - Differencialʹnye uravneniâ
PY  - 1998
SP  - 1420
EP  - 1422
VL  - 34
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1998_34_10_a16/
LA  - ru
ID  - DE_1998_34_10_a16
ER  -