Arsego, D. A., Ferraz, S. E. T., Streck, N. A., Cardoso, A. de O., & Zanon, A. J. (2018). Study of the impact of different indices associated with El Niño southern oscillation on soybean yield in Rio Grande do Sul. Ciência E Natura, 40, 82–87. https://doi.org/10.5902/2179460X30684