Paulino, G.M. et al. 2010. Biological fixation and nitrogen transfer by three legume species in mango and soursop organic orchards. Pesquisa Agropecuaria Brasileira. 44, 12 (Dec. 2010), 1598–1607. DOI:https://doi.org/10.1590/S1678-3921.pab2009.v44.2675.