Barreto, H.F.M. et al. 2011. Environmental impacts of caatinga agroecological handling in Rio Grande do Norte, Brazil. Pesquisa Agropecuaria Brasileira. 45, 10 (Jan. 2011), 1073–1081. DOI:https://doi.org/10.1590/S1678-3921.pab2010.v45.8314.