@article{DE_1978_14_11_a7,
     author = {D. N. Cheban and V. F. Cherny},
     title = {On the question of an exponential dichotomy on the half-line of the solutions of linear systems of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2012--2018},
     publisher = {mathdoc},
     volume = {14},
     number = {11},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_11_a7/}
}