1. Sharp sufficient conditions for the observation, control, and stabilization of waves from the boundary;Bardos;SIAM J. Control Optim.,1992
2. Asymptotic behavior of solutions of evolution equations;Dafermos,1978
3. Nonlinear Evolution Equations – Global Behavior of Solutions;Haraux,1981
4. Decay estimates for some semilinear damped hyperbolic problems;Haraux;Arch. Rational Mech. Anal.,1988
5. Exact Controllability and Stabilization. The Multiplier Method;Komornik,1994