@article{MZM_2015_98_5_a4,
     author = {L. A. Kalyakin},
     title = {Lyapunov {Functions} in {Justification} {Theorems} for {Asymptotics}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {695--709},
     publisher = {mathdoc},
     volume = {98},
     number = {5},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2015_98_5_a4/}
}