@article{DE_1983_19_11_a10,
     author = {V. N. Shchennikov},
     title = {Investigation of convergence in a nonautonomous differential system by means of {Lyapunov} vector-functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1902--1907},
     publisher = {mathdoc},
     volume = {19},
     number = {11},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_11_a10/}
}