@article{DE_1986_22_5_a24,
     author = {M. A. Ivanov},
     title = {The behavior of solutions of a perturbed homogeneous system of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {894--896},
     year = {1986},
     volume = {22},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_5_a24/}
}