Amaral F, Alberto LFC, Bretas NG. Stability boundary characterization of nonlinear autonomous dynamical systems in the presence of a type-zero saddle-node equilibrium point. Trends Comput. Appl. Math. [Internet]. 2010 Jun. 1 [cited 2024 Dec. 22];11(2):111-20. Available from: https://tcam.sbmac.org.br/tema/article/view/95