TY  - JOUR
AU  - N. B. Medvedeva
TI  - The problem of the stability of singular points on the plane from the point of view of algebraic and analytic solvability
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 605
EP  - 610
VL  - 25
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_4_a6/
LA  - ru
ID  - DE_1989_25_4_a6
ER  -