@article{EJDE_2015__2015__a58,
     author = {Ahmad,  Bashir and Ntouyas,  Sotiris K.},
     title = {Initial value problems of fractional order {Hadamard-type} functional differential equations},
     journal = {Electronic journal of differential equations},
     year = {2015},
     volume = {2015},
     zbl = {1320.34109},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a58/}
}