L. Zhenhua, H. Rugen, H. Yueming, F. Shudi, and F. Peihua, “Generating high spatiotemporal resolution LAI based on MODIS/GF-1 data and combined Kriging-Cressman interpolation”, Int J Agric & Biol Eng, vol. 9, no. 5, pp. 120–131, Sep. 2016.