@article{DE_1994_30_4_a19,
     author = {S. A. Mazanik},
     title = {Asymptotic equivalence under perturbations of diagonal systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {728},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_4_a19/}
}