Castro, G. S. A. and Crusciol, C. A. C. (2013) “Yield and mineral nutrition of soybean, maize, and Congo signal grass as affected by limestone and slag”, Pesquisa Agropecuaria Brasileira, 48(6), pp. 673–681. doi: 10.1590/S1678-3921.pab2013.v48.13754.