de Souza, J. V. T. M.; Massocatto, C. L.; Diniz, K. M.; Tarley, C. R. T.; Caetano, J.; Dragunski, D. C. Adsorption of Chromium (III) by Waste Orange Raw and Chemically Modified. Semin., Exact Tech. Scienc. 2012, 33, 3-16.