Nogueira, B. A., N. Merlin, P. M. dos Santos, J. A. B. dos Santos, S. da C. Saab, and L. M. dos S. Tonial. “Soil Chemical and Spectroscopy Characteristics and the Effect of Management Practices”. Scientia Agraria Paranaensis, vol. 17, no. 1, June 2018, pp. 119-26, https://e-revista.unioeste.br/index.php/scientiaagraria/article/view/16175.