Quy, L. M., and T. I. Thinh. “Plastic Damage Evolution in Multilayer coatings/Ductile Substrate System under Spherical Indentation: Influence of a Metallic Interlayer”. Vietnam Journal of Mechanics, vol. 27, no. 2, June 2005, pp. 86-95, doi:10.15625/0866-7136/27/2/5718.