Willadino, Lilia, et al. “Maize Cultivar Evaluation in Saline Soil of the Semi-Arid Region of Pernambuco State, Brazil”. Pesquisa Agropecuaria Brasileira, vol. 29, no. 7, July 1994, pp. 1059-65, doi:10.1590/S1678-3921.pab1994.v29.4148.