Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1997_62_1_a17, author = {S. M. Dobrovolskii and R. K. Romanovskii}, title = {Method of {Lyapunov} functions for almost-periodic systems}, journal = {Matemati\v{c}eskie zametki}, pages = {151--153}, publisher = {mathdoc}, volume = {62}, number = {1}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1997_62_1_a17/} }
S. M. Dobrovolskii; R. K. Romanovskii. Method of Lyapunov functions for almost-periodic systems. Matematičeskie zametki, Tome 62 (1997) no. 1, pp. 151-153. http://geodesic.mathdoc.fr/item/MZM_1997_62_1_a17/