@article{SM_2003_194_10_a5,
     author = {A. O. Ignatyev},
     title = {Method of {Lyapunov} functions in problems of stability of solutions},
     journal = {Sbornik. Mathematics},
     pages = {1543--1558},
     year = {2003},
     volume = {194},
     number = {10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2003_194_10_a5/}
}