robust control. uncertain polytopic system. output feedback. PID controller. regional polePaulusová, Jana, 1975- Robust boundary of stability and design of robust controller in uncertain polytopic linear systems / aut. Jana Paulusová, Ladislav Körösi, Vojtech Veselý. -- 10.2478/jee-2022-0028. -- 000830068600008. -- 2-s2.0-85144245635. Körösi, Ladislav, 1977-. Veselý, Vojtech, 1940- In: Journal of Electrical Engineering. -- ISSN 1335-3632. -- Vol. 73, No. 3 (2022), s. 209-214.