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@article{DAN_1964_155_6_a8, author = {Ya. Z. Tsypkin}, title = {An estimate of the degree of stability of non-linear sample-data systems}, journal = {Doklady Akademii Nauk}, pages = {1272--1273}, publisher = {mathdoc}, volume = {155}, number = {6}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_6_a8/} }
Ya. Z. Tsypkin. An estimate of the degree of stability of non-linear sample-data systems. Doklady Akademii Nauk, Tome 155 (1964) no. 6, pp. 1272-1273. http://geodesic.mathdoc.fr/item/DAN_1964_155_6_a8/