Pr. N. Lehdili, NATIXIS Bank-Paris, France

Pr. L. Maniar, Cadi Ayyad University Marrakech, Morocco

Pr. Y. Mesri, Mines-Paris, France

Pr. A. Mouhib, Sidi Mohamed Ben Abdellah University Fez, Morocco

Pr. Y. Ouknine, Cadi Ayyad University Marrakech, Morocco