L. EZZAHRI, and ALI BOUTOULOUT, and F.Z EL ALAOUI, (2015) Minimum energy input control problem on a constrained boundary subregion. Internationa Review of Automatic Control (I.RE.A.CO.), Vol. 8 N 1 , 2015.

H. BOURRAY, and ALI BOUTOULOUT, and F.Z EL ALAOUI, (2012) Boundary flux reconstruction for semilinear parabolic systems: HUM Approach. Int. Review of Automatic Control REACO, Vol 5 No 5 pp: 652-659, 2012.

BOUTOULOUT, and H. BOURRAY, and F.Z EL ALAOUI, (2012) Regional gradient observability for distributed semilinear parabolic systems. Journal of Dynamical and control Systems. Vol. 18, No. 2, pp. 159-179, (2012)..

F.Z EL ALAOUI, and HANS ZWART, and ALI BOUTOULOUT, (2011) Spectral Condition Implied by Observability. SIAM J. Control Optim. V. 49 N 2 pp 672-685 (2011).