Carneiro, M.A.C. et al. (1999) “Effects of arbuscular mycorrhizal fungi inoculation and phosphorus application on forage crops establishment in a degraded soil”, Pesquisa Agropecuaria Brasileira, 34(9), pp. 1669–1677. doi:10.1590/S1678-3921.pab1999.v34.5413.