Modeling of winter wheat fAPAR by integrating Unmanned Aircraft Vehicle-based optical, structural and thermal measurement. - Zhengang Lv; Ran Meng; Jianguo Man; Linglin Zeng; Meiyv Wang; Binyuan Xu; Renjie Gao; Rui Sun; Feng R. Zhao (Int. J. Appl. Earth Obs. Geoinformation, 2021)