Some results on convergence linked to a perturbed boundary optimal control system. A. Bounabat; T. Benkiran; M. Akkouchi — 1994 Extracta Mathematicae
Remarks on the spectrum of bounded and normal operators on Hilbert spaces. Akkouchi, M. — 2008 Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
Some inequalities for random variables whose probability density functions are bounded. Akkouchi, M. — 2004 Mathematica Pannonica