Machado, Luís Armando Zago. 2012. “Mixtures of Annual and Perennial Forage for Soybean Sucession in crop‑livestock Integration Systems”. Pesquisa Agropecuaria Brasileira 47 (4):629-36. https://doi.org/10.1590/S1678-3921.pab2012.v47.11747.