Fichtner, S. S., Paula, A. N. de, Jardim, E. C., & Margon, A. (2007). MINERAL COMPOSITION OF SOILS, FORAGES AND ANIMAL TISSUE IN THE RIO VERDE REGION, GOIÁS, BRAZIL: ZINC AND COBALT. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], 19(1), 79-85. https://doi.org/10.5216/pat.v19i1.2570