(1)
Bey, R.; Heminna, A.; Lohéac, J.-P. Boundary stabilization of the linear elastodynamic system by a Lyapunov-type method. Rev. mat. complut. 2003, 16 ,2, 417-441. https://doi.org/10.5209/rev_REMA.2003.v16.n2.16815.