Yang Wenjuan and  Xu Yilun,  Study on Influencing Factors of Walkability of Rail Transit Station Area.   journal   = {International Journal of Transport and Vehicle Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 130(10). 1488 - 1496
    [viewed 13 July 2020]. Available from: https://publications.waset.org/pdf/10008533.