TY  - JOUR
AU  - E. V. Mamotov
TI  - Some properties of a system of first-order ordinary differential nonlinear equations with a singular matrix of constant rank in front of the vector of the derivatives
JO  - Differencialʹnye uravneniâ
PY  - 1988
SP  - 1055
EP  - 1058
VL  - 24
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1988_24_6_a21/
LA  - ru
ID  - DE_1988_24_6_a21
ER  -