Performances of PID and different fuzzy methods for controlling a ball on beamVu, Trieu Minh; Tamre, Mart; Moezzi, Reza; Mets, Oliver; Jürise, Mart; Põlder, Ahti; Teder, Leo; Juurma, MärtOpen engineering2016 / p. 145-151 : ill https://doi.org/10.1515/eng-2016-0018