Larissa Roots,  Axisymmetric Vibrations of Layered Cylindrical Shells with Cracks.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 1376 - 1379
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/16373.