WASET
    Natural Frequency Analysis of a Porous Functionally Graded Shaft System,  Natural Frequency Analysis of a Porous Functionally Graded Shaft System.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2020, vol. 159(3). 146 - 154
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10011132.