WASET
    A.Campanile and  M. Mandarino and  V. Piscopo and  A. Pranzitelli,  On the Exact Solution of Non-Uniform Torsion for Beams with Axial Symmetric Cross-Section.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2009, vol. 31(7). 746 - 755
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/2911.