A. G. F. Romero and J. O. Siqueira, “Activity of flavonoids on spores of the mycorrhizal fungus Gigaspora gigantea in vitro”, PAB, vol. 31, no. 7, pp. 517–522, Jul. 1996, doi: 10.1590/S1678-3921.pab1996.v31.4513.