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@article{DE_1968_4_3_a6, author = {T. Wang}, title = {A certain criiterion for {Ljapunov} stability}, journal = {Differencialʹnye uravneni\^a}, pages = {446--458}, publisher = {mathdoc}, volume = {4}, number = {3}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_3_a6/} }
T. Wang. A certain criiterion for Ljapunov stability. Differencialʹnye uravneniâ, Tome 4 (1968) no. 3, pp. 446-458. http://geodesic.mathdoc.fr/item/DE_1968_4_3_a6/