@article{DE_1977_13_11_a9,
     author = {A. M. Samoilenko and N. A. Perestyuk},
     title = {Stability of the solutions of differential equations with impulsive action},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1981--1992},
     publisher = {mathdoc},
     volume = {13},
     number = {11},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_11_a9/}
}