@article{DE_2002_38_10_a9,
     author = {B. S. Jovanovi\'c and P. P. Matus},
     title = {Coefficient {Stability} of {Second-Order} {Operator-Differential} {Equations}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1371--1377},
     publisher = {mathdoc},
     volume = {38},
     number = {10},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2002_38_10_a9/}
}