Fiore, M. de F. et al. 2014. The effect of <i>Azolla</i> species on growth response of flooded rice. Pesquisa Agropecuaria Brasileira. 24, 6 (Apr. 2014), 655–661. DOI:https://doi.org/10.1590/S1678-3921.pab1989.v24.15862.