WASET
    Jiahua Zhang and  Qing Chang and  Fengmei Yao,  Grassland Phenology in Different Eco-Geographic Regions over the Tibetan Plateau.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2015, vol. 107(11). 1301 - 1306
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10002213.