TY  - JOUR
AU  - N. S. Berezkina
TI  - Classes of third-order systems with no moving critical points, and evolution equations
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 885
EP  - 886
VL  - 23
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_5_a20/
LA  - ru
ID  - DE_1987_23_5_a20
ER  -