Buchacz, Andrzej, and Damian Ga. “Study of Negative Elements for Discrete Mechatronic Systems”. Discontinuity, Nonlinearity, and Complexity 6, no. 4 (December 1, 2017): 503–511. Accessed October 17, 2026. https://lhscientificpublishing.com/index.php/DNC/article/view/1923.