R. P. Soratto, C. A. C. Crusciol, C. H. M. da Costa, J. Ferrari Neto, and G. S. A. Castro, “Production, decomposition and nutrient cycling in residues of sunnhemp and pearl millet in monocropped and intercropped systems”, PAB, vol. 47, no. 10, pp. 1462–1470, Nov. 2012.