Zhang, H, Y. Lan, R. Lacey, W. C. Hoffmann, and Y. Huang. “Analysis of Vegetation Indices Derived from Aerial Multispectral and Ground Hyperspectral Data”. International Journal of Agricultural and Biological Engineering 2, no. 3 (September 30, 2009): 33–40. Accessed January 28, 2026. https://ijabe.org/index.php/ijabe/article/view/171.