ALI, M. U.; KAMRAN, T.; HOUMANI, H.; POSTOLACHE, M. On the solution of a system of integral equations via matrix version of Banach contraction principle. Communications in Mathematics and Applications, [S. l.], v. 8, n. 3, p. 207–215, 2017. DOI: 10.26713/cma.v8i3.548. Disponível em: https://www.journals.rgnpublications.com/index.php/cma/article/view/548. Acesso em: 18 aug. 2025.