Dhage, B. C., and S. K. Ntouyas. “Existence Results for Boundary Value Problems for Fractional Hybrid Differential Inclusions”. Topological Methods in Nonlinear Analysis, vol. 44, no. 1, Apr. 2016, pp. 229-38, https://apcz.umk.pl/TMNA/article/view/TMNA.2014.044.