WASET
    Chun-Ta Chen and  Te-Tan Liao and  Hoang-Vuong Pham,  On Climbing Winding Stairs for a Robotic Wheelchair.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2010, vol. 41(5). 404 - 409
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/4096.