Nascimento, Warley Marcos, et al. “Physiological Quality of Sweet-Corn (Zea Mays L.) Seeds As Affected by Methods of Harvest, Threshing and Processing”. Pesquisa Agropecuaria Brasileira, vol. 29, no. 8, Aug. 1994, pp. 1211-4, doi:10.1590/S1678-3921.pab1994.v29.4166.