WASET
Lhoucine, B. , Khalid, E. , Rhali, B. (2013), 'Geometrically Non-Linear Axisymmetric Free Vibration Analysis of Functionally Graded Annular Plates', World Academy of Science, Engineering and Technology, Open Science Index 83, International Journal of Aerospace and Mechanical Engineering, 7(11), 2290 - 2299.