TY  - JOUR
AU  - V. A. Bogachev
TI  - Investigation of a singular point on the plane in the case of two zero roots
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 1560
EP  - 1567
VL  - 7
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_9_a1/
LA  - ru
ID  - DE_1971_7_9_a1
ER  -