ABDULLAEV, O. Kh. On the problem for the mixed-type degenerate equation with Caputo and Erdelyi – Kober operators of fractional order. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 6, p. 723–738, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1471. Acesso em: 5 dec. 2025.