@article{DE_2004_40_7_a11,
     author = {S. V. Lemeshevskii and P. P. Matus and A. R. Naumovich},
     title = {A {Criterion} for {Coefficient} {Stability}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {978--984},
     publisher = {mathdoc},
     volume = {40},
     number = {7},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_7_a11/}
}