WASET
    Li Wu,  Variable Responses of Leaf C, N and P to Climatic Factors in Different Regions and Growth Forms.   journal   = {International Journal of Biological and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2017, vol. 130(10). 753 - 762
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10009085.