A. AFROUZI, Ghasem; KOLAGAR, Samad Mohseni; HADJIAN, Armin; XU, Jiafa. Variational Approach for a Class of Two-point Fractional Boundary Value Systems. MATEMATIKA, [S. l.], v. 34, n. 2, p. 351–364, 2018. DOI: 10.11113/matematika.v34.n2.898. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/898. Acesso em: 19 apr. 2025.