BOUTERAA, Noureddine; BENAICHA, Slimane. A study of existence and multiplicity of positive solutions for nonlinear fractional differential equations with nonlocal boundary conditions. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 66, n. 2, p. 361–380, 2021. DOI: 10.24193/subbmath.2021.2.12. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/1334. Acesso em: 5 feb. 2025.