Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1991_316_4_a17, author = {B. T. Polyak and Ya. Z. Tsypkin}, title = {Robust stability of linear discrete systems}, journal = {Doklady Akademii Nauk}, pages = {842--846}, publisher = {mathdoc}, volume = {316}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_4_a17/} }
B. T. Polyak; Ya. Z. Tsypkin. Robust stability of linear discrete systems. Doklady Akademii Nauk, Tome 316 (1991) no. 4, pp. 842-846. http://geodesic.mathdoc.fr/item/DAN_1991_316_4_a17/