New stability conditions for discrete-time systemsNurges, Ülo; Rüstern, EnnuProceedings of the 6th Asia-Pacific Conference on Control & Measurement : 12-19 August, 2004, Chengdu, China2004 / p. 167-173

On the robust controller design via reflection coefficientsNurges, Ülo; Rüstern, EnnuProceedings of the 5th Asia-Pacific Conference on Control & Measurement, Dali, China, 20022002 / p. 160-165

Stable polytopes of reflection vectors and robust controlNurges, Ülo; Rüstern, EnnuProceedings of the 7th Asia-Pacific Conference on Control & Measurement : 10-18 August, 2006, Tibet, China2006 / p. 345-349