Hideyuki Shintani and  Ichiro Koshijima,  The Framework of System Safety for  Multi Human-in-The-Loop System.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2016, vol. 116(8). 2934 - 2939
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10005277.