@article{M2AN_1999__33_2_407_0, author = {Infante, Juan Antonio and Zuazua, Enrique}, title = {Boundary observability for the space semi-discretizations of the $1-d$ wave equation}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis - Mod\'elisation Math\'ematique et Analyse Num\'erique}, volume = {33}, year = {1999}, pages = {407-438}, mrnumber = {1700042}, zbl = {0947.65101}, language = {en}, url = {http://dml.mathdoc.fr/item/M2AN_1999__33_2_407_0} }
Infante, Juan Antonio; Zuazua, Enrique. Boundary observability for the space semi-discretizations of the $1-d$ wave equation. ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique, Tome 33 (1999) pp. 407-438. http://gdmltest.u-ga.fr/item/M2AN_1999__33_2_407_0/
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