MITROPOLSKY , Yu. O.; ANTONISHIN , I. O.; PRIKARPATSKY , A. K.; SAMOILENKO , V. G. Simplex analysis of dynamical systems with a perturbation. New criteria of stabilization of a homoclinic separatrix and its use. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 1, p. 46–66, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2319. Acesso em: 17 apr. 2025.