@article{EJDE_2009__2009__a25,
     author = {Ntouyas, Sotiris K. and O'Regan, Donal},
     title = {Some remarks on controllability of evolution equations in {Banach} spaces},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2009},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a25/}
}