Echeverri LF, Giraldo Óscar I, Zarrazola E. A model of competing species that exhibits zip bifurcation. Rev. Integr. temas mat. [Internet]. 2017 Aug. 9 [cited 2024 Jul. 22];35(1):127-41. Available from: https://revistas.uis.edu.co/index.php/revistaintegracion/article/view/6599