TY  - JOUR
AU  - N. A. Lukashevich
TI  - Third-order equations without fixed critical points
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 778
EP  - 785
VL  - 18
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_5_a7/
LA  - ru
ID  - DE_1982_18_5_a7
ER  -