“A Remark on the Existence of Positive Solution for a Class of (p,q)-Laplacian Nonlinear System With Multiple Parameters and Sign-Changing Weight”. Journal of Partial Differential Equations 26, no. 2 (June 2, 2013): 99–106. Accessed December 5, 2025. https://www.global-sci.com/index.php/jpde/article/view/14851.