WASET
    Li Wu,  Analysis on Precipitation Variation Patterns of Chenzhou City.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 128(8). 737 - 742
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10008630.