@article{COCV_2010__16_2_298_0, author = {Ervedoza, Sylvain}, title = {Observability properties of a semi-discrete 1d wave equation derived from a mixed finite element method on nonuniform meshes}, journal = {ESAIM: Control, Optimisation and Calculus of Variations}, pages = {298--326}, publisher = {EDP-Sciences}, volume = {16}, number = {2}, year = {2010}, doi = {10.1051/cocv:2008071}, zbl = {1192.35109}, mrnumber = {2654195}, language = {en}, url = {http://archive.numdam.org/articles/10.1051/cocv:2008071/} }