Mikhael, J. E. R., R. F. . Almeida, F. de O. . Franco, R. O. . Camargo, and B. Wendling. “Recalcitrant Carbon and Nitrogen in Agriculture Soils With Residue Accumulation and Fertilization under Tropical Conditions”. Bioscience Journal, vol. 35, no. 3, June 2019, pp. 732-40, doi:10.14393/BJ-v35n3a2019-41859.