TY - JOUR ID - iiasa4689 UR - https://pure.iiasa.ac.at/id/eprint/4689/ IS - 3 A1 - Filippova, T.F. A1 - Kurzhanski, A.B. A1 - Sugimoto, K. A1 - Valyi, I. Y1 - 1996/// PB - Birkhauser Verlag JF - Journal of Mathematical Systems, Estimation, and Control VL - 6 SN - 1052-0600 TI - Ellipsoidal calculus, singular perturbations and the state estimation problems for uncertain systems SP - 323 AV - none EP - 338 ER -