Noldin, José Alberto, and Claudio Mario Mundstock. “Grain Yield and Yield Components of Three Maize Cultivars in Two Planting Dates”. Pesquisa Agropecuaria Brasileira, vol. 23, no. 6, Apr. 2014, pp. 615-20, doi:10.1590/S1678-3921.pab1988.v23.13934.