S. B. Bhering, C. da S. Chagas, W. de Carvalho Júnior, N. R. Pereira, B. Calderano Filho, and H. S. K. Pinheiro, “Digital mapping of sand, clay, and soil carbon by Random Forest models under different spatial resolutions”, PAB, vol. 51, no. 9, pp. 1359–1370, Oct. 2016.