KARACA , I. Y.; OZ , D. Existence of solutions for a fractional-order boundary value problem. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 12, p. 1651–1662, 2020. DOI: 10.37863/umzh.v72i12.6033. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6033. Acesso em: 5 dec. 2025.