Bellarmino de Pereira-Netto, Adaucto, et al. “Nitrate Reductase Activity in Field-Grown <i>Pueraria lobata< I> (Kudzu) in Southeastern Brazil”. Pesquisa Agropecuaria Brasileira, vol. 33, no. 12, Dec. 1998, pp. 1971-5, doi:10.1590/S1678-3921.pab1998.v33.5020.