L. R. C. da Silva and J. O. Siqueira, “Effects of carbohydrates and organic acids on the mycelial growth of the endomycorrhizal fungus Gigaspora gigantea In vitro”, PAB, vol. 26, no. 11/12, pp. 2007–2014, Oct. 1991, doi: 10.1590/S1678-3921.pab1991.v26.3554.