Miró, C.P., Ferreira, A.G. and Aquila, M.E.A. (1998) “Allelopathy of ripe fruits of ilex paraguariensis (‘mate’) on corn cultivation”, Pesquisa Agropecuaria Brasileira, 33(8), pp. 1261–1270. doi:10.1590/S1678-3921.pab1998.v33.4959.