TY  - JOUR
AU  - C. Tunç
AU  - E. Tunç
TI  - An instability theorem for a class of eighth-order differential equations
JO  - Differencialʹnye uravneniâ
PY  - 2006
SP  - 135
EP  - 138
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2006_42_1_a13/
LA  - ru
ID  - DE_2006_42_1_a13
ER  -