Zhang, H., Yang, J., Baartman, J. E., Li, S., Jin, B., Han, W., … Geissen, V. (2018). Quality of terrestrial data derived from UAV photogrammetry: A case study of Hetao irrigation district in northern China. International Journal of Agricultural and Biological Engineering, 11(3), 171–177. https://doi.org/10.25165/ijabe.v11i3.3012