ZHONG, Qiuyan; ZHANG, Xingqiu; GU, Lufeng; LEI, Lei; ZHAO, Zengqin. Multiple positive solutions for singular higher-order semipositone fractional differential equations with p-Laplacian. Nonlinear Analysis: Modelling and Control, [S. l.], v. 25, n. 5, p. 806–826, 2020. DOI: 10.15388/namc.2020.25.18383. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/18383.. Acesso em: 29 apr. 2024.