Cordeiro, Meire Aparecida Silvestrini, et al. “COLONIZATION AND SPORE DENSITY OF ARBUSCULAR MYCORRHIZAL FUNGI IN TWO CERRADO SOILS IN DIFFERENT TILLAGE SYSTEMS”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 35, no. 3, Oct. 2007, pp. 147-53, https://doi.org/10.5216/pat.v35i3.2216.