Generalized fractional differential equation with Hilfer fractional derivatives. Kazakh Mathematical Journal, [S. l.], v. 25, n. 4, p. 43–56, 2025. DOI: 10.70474/ypdts083. Disponível em: https://mathjournal.kz/index.php/kmj/article/view/59. Acesso em: 15 mar. 2026.