LIU, Yuji. Global Existence of Solutions of a Class of Singular Fractional Differential Equations with Impulse Effects. MATEMATIKA, [S. l.], v. 32, n. 1, p. 13–29, 2016. DOI: 10.11113/matematika.v32.n1.758. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/758. Acesso em: 8 may. 2024.