E. B. Pott, P. A. de Brum, I. L. de Almeida, J. A. C. Filho, and A. Pott, “Beefcaltle mineral nutrition in the Brazilian ‘Pantanal’. V. Macronutrients survey on the Aquidauana subregion”, PAB, vol. 24, no. 11, pp. 1381–1395, Apr. 2014.