R. Nogueira, O. Santos Neto, R. M. Lourenço, C. O. Sena, e C. M. W. da Silva, “TOTAL NITROGEN DETERMINATION IN AMMONIACAL, AMIDIC AND NITRATE NITROGEN CONTAINING FERTILIZERS BY THE RANEY CATALYST METHOD”, BJA, vol. 97, nº 2, p. 215–226, ago. 2022.