@article{DE_1988_24_12_a9,
     author = {A. A. Levakov},
     title = {Use of sign-constant {Lyapunov} functions for the study of the stability of differential inclusions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2083--2090},
     publisher = {mathdoc},
     volume = {24},
     number = {12},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_12_a9/}
}