@article{DAN_1985_284_4_a7,
     author = {A. Ya. Savchenko},
     title = {Asymptotic stability of nonautonomous systems of differential},
     journal = {Doklady Akademii Nauk},
     pages = {801--803},
     publisher = {mathdoc},
     volume = {284},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_4_a7/}
}