TY  - JOUR
AU  - B. I. Efendiev
TI  - Lyapunov inequality for an ordinary second-order differential equation with a distributed integration operator
JO  - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory
PY  - 2021
SP  - 133
EP  - 137
VL  - 198
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/INTO_2021_198_a14/
LA  - ru
ID  - INTO_2021_198_a14
ER  -