Regional target control of the wave equation. - El Hassan Zerrik; R. Larhrissi (Int. J. Syst. Sci., 2001)

An Output Controllability Problem for Semilinear Distributed Hyperbolic Systems. - El Hassan Zerrik; R. Larhrissi; Hamid Bourray (Int. J. Appl. Math. Comput. Sci., 2007)