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@article{DE_1979_15_6_a7, author = {A. A. Shestakov and Yu. N. Merenkov}, title = {Examples of {Ljapunov} unstable points of positive attraction}, journal = {Differencialʹnye uravneni\^a}, pages = {1028--1035}, publisher = {mathdoc}, volume = {15}, number = {6}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_6_a7/} }
A. A. Shestakov; Yu. N. Merenkov. Examples of Ljapunov unstable points of positive attraction. Differencialʹnye uravneniâ, Tome 15 (1979) no. 6, pp. 1028-1035. http://geodesic.mathdoc.fr/item/DE_1979_15_6_a7/