Benchohra, Mouffak, and Naima Hamidi. “Fractional Order Differential Inclusions via the Topological Transversality Method”. CUBO, A Mathematical Journal 13, no. 2 (June 1, 2011): 139–149. Accessed May 8, 2024. https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1376.