El Sayed A. Sharara and  A. Tsuji and  K. Terada,  Burnout Recognition for Call Center Agents by Using Skin Color Detection with Hand Poses .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2017, vol. 129(9). 1066 - 1069
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10007970.