VARIATIONAL ANALYSIS OF A FRICTIONAL CONTACT PROBLEM WITH WEAR AND DAMAGEMohammed Salah Mesai Aoun، Mohamed Selmani، Abdelaziz Azeb AhmedMathematical Modelling and Analysisالمجلّد 26، (2)، الصفحات 170-1872021مقال وصول مفتوح 5