J. N. S. Filho, D. E. P. Pereira, and A. S. R. Noronha, “Estimation of nitrogen content in sugarcane based on vegetation indices derived from Sentinel-2 data”, Sci. agropecu, vol. 16, no. 1, pp. 61–70, Jan. 2025, doi: 10.17268/sci.agropecu.2025.006.