Sun Ailu and  Zhao Wanmin,  Research on the Mode and Strategy of Urban Renewal in the Old Urban Area of China: A Case Study of Chongqing City.   journal   = {International Journal of Urban and Civil Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2019, vol. 148(4). 226 - 229
    [viewed 29 March 2020]. Available from: https://publications.waset.org/pdf/10010258.