Yun Zhang and  Zhu Wang,  The Renewal Strategy for Ancient Residential Area in Small and Medium-Sized Cities Based on Field Research of Changshu City in China.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2019, vol. 153(9). 552 - 558
    [viewed 18 November 2019]. Available from: https://publications.waset.org/pdf/10010725.