Hasan, Mustafa, and Ljubomir Lilov. “Accuracy of the Planar Compliant Mechanisms”. Ann. Sofia Univ. Fac. Math. and Inf. 98 (December 12, 2008): 203–229. Accessed April 4, 2025. https://stipendii.uni-sofia.bg/index.php/fmi/article/view/139.