M. HOUAS; M. BENBACHIR; Z. DAHMANI. Some Results for a Four-Point Boundary Value Problems for a Coupled System Involving Caputo Derivatives. Malaya Journal of Matematik, India, v. 3, n. 01, p. 30–44, 2015. DOI: 10.26637/mjm301/004. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/449. Acesso em: 16 jul. 2024.