Alliprandini, Luis Fernando, et al. “Effects of Genotype X Environment Interaction on Soybean Yield in Paraná State, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 29, no. 9, Sept. 1994, pp. 1433-44, doi:10.1590/S1678-3921.pab1994.v29.4193.