E. Abedi and  A. Ahmadi Nadooshan and  S. Salehi,  Dynamic Modeling of Tow Flexible Link Manipulators.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2008, vol. 22(10). 1140 - 1146
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/8844.