@article{DE_1990_26_8_a6,
     author = {A. M. Samoilenko and V. L. Kulik},
     title = {Systems of linear differential equations that are regular on the whole axis},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1338--1343},
     publisher = {mathdoc},
     volume = {26},
     number = {8},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_8_a6/}
}