WASET
    A. Meftah and  D. Zarga and  M. Yahiaoui,  Analytical Study and Modeling of Free Vibrations of Functionally Graded Plates Using a Higher Shear Deformation Theory.   journal   = {International Journal of Mechanical and Materials Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2018, vol. 142(10). 956 - 960
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10009642.