KARLEN, Douglas L.; ARCHER, David; LISKA, Adam J.; MEYER, Seth. Energy Issues Affecting Corn/Soybean Systems: Challenges for Sustainable Production. Council for Agricultural Science and Technology (CAST), Ames, U.S.A., 2012. DOI: 10.62300/8fqmtc02. Disponível em: https://publications.cast-science.org/CAST/article/view/121. Acesso em: 1 jul. 2026.