M. Altekin and  R. F. Yükseler ,  Axisymmetric Nonlinear Analysis of Point Supported Shallow Spherical Shells .   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2013, vol. 83(11). 2180 - 2183
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/17336.