GRAEF, J. R., GUERRAICHE, N. and HAMANI, S. (2017) “Boundary value problems for fractional differential inclusions with Hadamard type derivatives in Banach spaces”, Studia Universitatis Babeș-Bolyai Mathematica, 62(4), pp. 427–438. doi: 10.24193/subbmath.2017.4.02.