Ying Chu, E. (1998) “Occurrence of arbuscular <i>mycorrhizal fungi</i> and of <i>Azotobacter paspali</i> in <i>Paspalum notatum</i>”;, Pesquisa Agropecuaria Brasileira, 33(6), pp. 1001–1004. doi: 10.1590/S1678-3921.pab1998.v33.4898.