HASAN, M.; LILOV, L. Accuracy of the planar compliant mechanisms. Ann. Sofia Univ. Fac. Math. and Inf., [S. l.], v. 98, p. 203–229, 2008. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/139. Acesso em: 9 apr. 2025.