Quast, Dietrich Gerhard. “Studies on the Quantitative and Qualitative Content of Protein in Samples of Corn (<i>Zea mays< I> L.)”. Pesquisa Agropecuaria Brasileira, vol. 1, no. 1, Mar. 2024, pp. 225-32, doi:10.1590/S1678-3921.pab1966.v1.18021.