@article{DE_1981_17_5_a19,
     author = {S. A. Mazanik},
     title = {Asymptotic behavior of equivalent linear differential systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {923--926},
     year = {1981},
     volume = {17},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_5_a19/}
}