@article{DE_1981_17_5_a22,
     author = {V. A. Podchukaev},
     title = {A method for constructing {Ljapunov} functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {933--935},
     year = {1981},
     volume = {17},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_5_a22/}
}