Cogo, F. D.; Araújo-Junior, C. F.; Zinn, Y. L.; Dias Junior, M. de S.; Alcântara, E. N. de; Guimarães, P. T. G. Soil Organic Carbon Stocks in Coffee Plantations under Different Weed Control Systems. Semina: Ciênc. Agrár. 2013, 34, 1089-1098.