de Araujo Barbosa, J. et al. (2018) “Allelopathy of aqueous Pachyrhizus erosus L. extracts on Euphorbia heterophylla and Bidens pilosa”, Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], 48(1), pp. 59–65. doi:10.5216/pat.v48i1.51117.