RASOULI, S. H. On a Class of Infinite Semipositone Nonlinear Systems with Multiple Parameters. The Journal of the Indian Mathematical Society, [S. l.], v. 84, n. 1-2, p. 90–95, 2017. DOI: 10.18311/jims/2017/6110. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/6110. Acesso em: 2 may. 2024.