WASET
    Hsin-Yun Lee,  Planning the Building Evacuation Routes by a Spatial Network.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2012, vol. 65(5). 346 - 349
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/3466.