Romero, A.G.F. and Siqueira, J.O. (1996) “Activity of flavonoids on spores of the mycorrhizal fungus Gigaspora gigantea in vitro”, Pesquisa Agropecuaria Brasileira, 31(7), pp. 517–522. doi:10.1590/S1678-3921.pab1996.v31.4513.