Akhmet, M. U., and A. Kıvılcım. “Van Der Pol Oscillators Generated from Grazing Dynamics”. Discontinuity, Nonlinearity, and Complexity 7, no. 3 (September 1, 2018): 259–274. Accessed October 17, 2026. https://lhscientificpublishing.com/index.php/DNC/article/view/1893.