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@article{DE_1967_3_4_a0, author = {N. Erouguine}, title = {Ljapunov's first method}, journal = {Differencialʹnye uravneni\^a}, pages = {531--578}, publisher = {mathdoc}, volume = {3}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1967_3_4_a0/} }
N. Erouguine. Ljapunov's first method. Differencialʹnye uravneniâ, Tome 3 (1967) no. 4, pp. 531-578. http://geodesic.mathdoc.fr/item/DE_1967_3_4_a0/