Cai-Wan Chang-Jian,  Chaotic Response and Bifurcation Analysis of Gear-Bearing System with and without Porous Effect under Nonlinear Suspension.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 1400 - 1405
    [viewed 07 April 2020]. Available from: https://publications.waset.org/pdf/16386.