Ferreira, Rodrigo Cornacini, et al. “Spatial Variability of Meteorological Observations and Impacts on Regional Estimates of Soybean Grain Productivity”. Semina: Ciências Agrárias, vol. 38, no. 4Supl1, Aug. 2017, pp. 2265-78, doi:10.5433/1679-0359.2017v38n4Supl1p2265.