1. F. Alabau and V. Komornik, Boundary observability, controllability and stabilization of linear elastodynamic systems, Institut de Recherche Mathématique Avancée Preprint Series, 15 (1996).
2. B. Dehman and L. Robbiano, La propriété du prolongement unique pour un système elliptique. Le système de Lamé, J. Math. Pures Appl., 72 (1993), 475–492.
3. A. Guesmia, Stabilisation frontière d’un système d’élasticité, C. R. Acad. Sci. Paris, Série I, 324 (1997), 1355–1360.
4. M. A. Horn, Implications of sharp trace regularity results on boundary stabilization of the system of linear elasticity, J. Math. Anal. Appl., 223 (1998), 126–150.
5. M. A. Horn, Sharp trace regularity for the solutions of the equations of dynamic elasticity, J. Math. Systems, Estim. Control, 8 (1998), 217–219.