M. Asch and G. Lebeau, Geometrical aspects of exact boundary controllability for the wave equation - a numerical study, ESAIM: Control, Optimisation and Calculus of Variations, vol.3, 1998.
DOI : 10.1051/cocv:1998106

C. Bardos, G. Lebeau, and J. Rauch, Sharp sufficient conditions for the observation, control and stabilisation of waves from the boundary, SIAM J.Control Optim, vol.305, 1992.

B. Dehman and G. Lebeau, Analysis of the HUM Control Operator and Exact Controllability for Semilinear Waves in Uniform Time, SIAM Journal on Control and Optimization, vol.48, issue.2, 2009.
DOI : 10.1137/070712067

R. Glowinski, J. W. He, and J. Lions, Exact and Approximate Controllability for Distributed Parameter Systems: A Numerical Approach, 2008.
DOI : 10.1017/CBO9780511721595

R. Glowinski, C. H. Li, and J. L. Lions, A numerical approach to the exact boundary controllability of the wave equation (I) Dirichlet controls : description of the numerical methods, Japan J. Appl. Math, vol.7, 1990.

G. Lebeau, Contrôle analytique I : Estimations a priori, Duke Math, J, vol.68, 1992.

G. Lebeau and M. Nodet, Experimental study of the HUM control operator for linear waves, Experimental mathematics

J. Lions, Contrôlabilité exacte, perturbations et stabilisation de systèmes distribués, 1988.

E. Zuazua, Controllability of Partial Differential Equations and its Semi-Discrete Approximations, Discrete and Continuous Dynamical Systems, 2002.

E. Zuazua, Propagation, Observation, and Control of Waves Approximated by Finite Difference Methods, SIAM Review, vol.47, issue.2, 2005.
DOI : 10.1137/S0036144503432862