TY  - JOUR
AU  - M. V. Dolov
TI  - An integrating factor in a neighborhood of a node
JO  - Differencialʹnye uravneniâ
PY  - 1997
SP  - 158
EP  - 160
VL  - 33
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1997_33_2_a2/
LA  - ru
ID  - DE_1997_33_2_a2
ER  -