@article{DE_1989_25_2_a0,
     author = {O. V. Anashkin and M. M. Khapaev},
     title = {The comparison method and investigation of the stability of systems of ordinary differential equations containing perturbations. {II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {187--192},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_2_a0/}
}