Reis Junior, R. dos A. and Monnerat, P. H. (2003) “Norms establishment of the Diagnosis and Recommendation Integrated System (DRIS) for nutritional diagnosis of sugarcane”, Pesquisa Agropecuaria Brasileira, 38(2), pp. 277–282. doi: 10.1590/S1678-3921.pab2003.v38.6571.