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@article{DE_1973_9_10_a3, author = {Yu. V. Malyshev}, title = {Generalized {Ljapunov} functions, and the theory of exceptional directions}, journal = {Differencialʹnye uravneni\^a}, pages = {1774--1779}, publisher = {mathdoc}, volume = {9}, number = {10}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_10_a3/} }
Yu. V. Malyshev. Generalized Ljapunov functions, and the theory of exceptional directions. Differencialʹnye uravneniâ, Tome 9 (1973) no. 10, pp. 1774-1779. http://geodesic.mathdoc.fr/item/DE_1973_9_10_a3/