MD ASADUZZAMANA, .-.; ALI, M. Z. Existence of Positive Solution for a Nonlinear Weighted Bi-Harmonic System of Elliptic Partial Differential Equations via Fixed-Point Argument. GANIT: Journal of Bangladesh Mathematical Society, [S. l.], v. 40, n. 1, p. 54–70, 2020. DOI: 10.3329/ganit.v40i1.48195. Disponível em: https://banglajol.info/index.php/GANIT/article/view/48195. Acesso em: 20 oct. 2024.