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@article{DE_1972_8_5_a19, author = {I. V. Gaishun}, title = {The asymptotic stability of a certain system with lag}, journal = {Differencialʹnye uravneni\^a}, pages = {906--908}, publisher = {mathdoc}, volume = {8}, number = {5}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_5_a19/} }
I. V. Gaishun. The asymptotic stability of a certain system with lag. Differencialʹnye uravneniâ, Tome 8 (1972) no. 5, pp. 906-908. http://geodesic.mathdoc.fr/item/DE_1972_8_5_a19/