Reference
El-Vilaly, M. A. S., Didan, K., Marsh, S. E., Van Leeuwen, W. J. D., Crimmins, M. A., & Munoz, A. B. (2017). Vegetation productivity responses to drought on tribal lands in the Four Corners region of the Southwest. Frontiers of Earth Science, 12(1), 37–51. https://doi.org/10.1007/s11707-017-0646-z