WASET
    Dimitar Karastoyanov and  Vladimir Monov,  An Intelligent System for Knee and Ankle Rehabilitation.   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2013, vol. 80(8). 506 - 512
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/16248.