BOICHUK, O.; FERUK, V. Fredholm boundary-value problem for the two-term sequential fractional differential equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 77, n. 1, p. 3–13, 2025. DOI: 10.3842/umzh.v77i1.8611. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8611. Acesso em: 27 apr. 2025.