GUO, Limin; LIU, Lishan; WU, Yonghong. Existence of positive solutions for singular fractional differential equations with infinite-point boundary conditions. Nonlinear Analysis: Modelling and Control, [S. l.], v. 21, n. 5, p. 635–650, 2019. DOI: 10.15388/NA.2016.5.5. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/13447.. Acesso em: 17 aug. 2024.