@article{DE_1986_22_9_a15,
     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},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1604--1606},
     publisher = {mathdoc},
     volume = {22},
     number = {9},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_9_a15/}
}