@article{EJDE_2010__2010__a104,
     author = {Wehbe, Ali},
     title = {Observability and controllability for a vibrating string with dynamical boundary control},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2010},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a104/}
}