Berlato, Moacir Antonio, Homero Farenzena, and Denise Cybis Fontana. “Association Between El Niño Southern Oscillation and Corn Yield in Rio Grande Do Sul State”. Pesquisa Agropecuaria Brasileira 40, no. 5 (May 1, 2005): 423–432. Accessed July 14, 2026. https://apct.sede.embrapa.br/pab/article/view/6974.