Shan, A. Y. K. V.; Oliveira, L. E. M. de; Bonome, L. T. da S.; Mesquita, A. C. Metabolic Assimilation of Nitrogen in Rubber Tree Seedlings Grown With Nitrate or Ammonium. PAB 2012, 47 (6), 754-762. https://doi.org/10.1590/S1678-3921.pab2012.v47.12062.