Toyoyuki Honjo and  Takeshi Hayashi and  Akinori Nagano and  Zhi-Wei Luo,  Target Trajectory Design of Parametrically Excited Inverted Pendulum for Efficient Bipedal Walking.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 2359 - 2366
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/2569.