Goward, S. N., Masek, J. G., Williams, D. L., Irons, J. R., & Thompson, R. J. (2001). The Landsat 7 mission: Terrestrial research and applications for the 21st century. Remote Sensing of Environment, 78(1–2), 3–12. https://doi.org/10.1016/S0034-4257(01)00262-0