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@article{DE_2004_40_2_a18, author = {A. A. Tsygankov}, title = {Higher {Derivatives} of {Lyapunov} {Functions}}, journal = {Differencialʹnye uravneni\^a}, pages = {277--279}, publisher = {mathdoc}, volume = {40}, number = {2}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2004_40_2_a18/} }
A. A. Tsygankov. Higher Derivatives of Lyapunov Functions. Differencialʹnye uravneniâ, Tome 40 (2004) no. 2, pp. 277-279. http://geodesic.mathdoc.fr/item/DE_2004_40_2_a18/