Benchohra, M., N‘Guérékata, G.M. and Seba, D. 2010. Measure of noncompactness and nondensely defined semilinear functional differential equations with fractional order. CUBO, A Mathematical Journal. 12, 3 (Oct. 2010), 35–48. DOI:https://doi.org/10.4067/S0719-06462010000300003.