@article{MZM_2016_100_4_a5,
     author = {B. S. Kalitin},
     title = {Lyapunov {Direct} {Method} for {Semidynamical} {Systems}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {531--543},
     publisher = {mathdoc},
     volume = {100},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_100_4_a5/}
}