Yangari, M., & Salazar, D. (2016). Parabolic Systems Involving Sectorial Operators: Existence and Uniqueness of Global Solutions. Revista Polit├ęcnica, 38(1), 40. Recuperado a partir de https://revistapolitecnica.epn.edu.ec/ojs2/index.php/revista_politecnica2/article/view/479