WASET
    Yiannis Koumpouros and  Effie Papageorgiou and  Alexandra Karavasili and  Foteini Koureta,  PYTHEIA: A Scale for Assessing Rehabilitation and Assistive Robotics.   journal   = {International Journal of Mechanical and Materials Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 119(11). 522 - 526
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10005588.