TY  - JOUR
AU  - L. M. Kuks
TI  - A certain variant of an identity of Picone type, and Sturm's theorems for higher order ordinary differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 758
EP  - 759
VL  - 12
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_4_a20/
LA  - ru
ID  - DE_1976_12_4_a20
ER  -