@article{EJDE_2014__2014__a73,
     author = {D'Apice,  Ciro and De Maio,  Umberto and Kogut,  Peter I. and Manzo,  Rosanna},
     title = {Solvability of an optimal control problem in coefficients for ill-posed elliptic boundary-value problems},
     journal = {Electronic journal of differential equations},
     year = {2014},
     volume = {2014},
     zbl = {1306.49006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a73/}
}