Benchohra, Mouffak, Gaston M. N‘Guérékata, and Djamila Seba. 2010. “Measure of Noncompactness and Nondensely Defined Semilinear Functional Differential Equations With Fractional Order”. CUBO, A Mathematical Journal 12 (3):35–48. https://doi.org/10.4067/S0719-06462010000300003.