TY  - JOUR
AU  - Yu. A. Melentsova
TI  - A non-improvable estimate of the interval of disconjugacy for a linear differential equation with coefficients that are bounded in $L_r$
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 1776
EP  - 1786
VL  - 13
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_10_a6/
LA  - ru
ID  - DE_1977_13_10_a6
ER  -