Leite, Regina Maria Villas Bôas de Campos, and Maria Cristina Neves de Oliveira. “Grouping Sunflower Genotypes for Yield, Oil Content, and Reaction to Alternaria Leaf Spot Using GGE Biplot”. Pesquisa Agropecuaria Brasileira, vol. 50, no. 8, Sept. 2015, pp. 649-57, doi:10.1590/S1678-3921.pab2015.v50.20785.