Roberto Vial Costa, Alexandre Christófaro Silva, José Domingos Fabris, Maurício Soares Barbosa, Uidemar Morais Barral and Daniela Alves de Oliveira Vial (2018) “Iron-bearing minerals and natural fertility of magnetic soils of Jequitinhonha Valley, Minas Gerais State, Brazil”, Brazilian Journal of Agricultural Sciences, 13(2), pp. 1-10. doi: 10.5039/agraria.v13i2a5517.