dos Santos, H. P., Fontaneli, R. S., Spera, S. T., & Maldaner, G. L. (2012). Energy conversion and balance of integrated crop-livestock production systems under no-tillage. Pesquisa Agropecuaria Brasileira, 46(10), 1193–1199. https://doi.org/10.1590/S1678-3921.pab2011.v46.8204