WASET
    Somya Poonaya and  Chawalit Thinvongpituk and  Umphisak Teeboonma,  An Analysis of Collapse Mechanism of Thin- Walled Circular Tubes Subjected to Bending.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2007, vol. 11(11). 610 - 615
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/1191.