TY  - JOUR
AU  - S. Yu. Pilyugin
TI  - The limit sets of two-dimensional unstable manifolds in three-dimensional systems of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1068
EP  - 1072
VL  - 9
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_6_a8/
LA  - ru
ID  - DE_1973_9_6_a8
ER  -