[1]
J. C. de Sousa, J. H. Conrad, W. G. Blue, C. B. Ammerman, and L. R. McDowell, “Interrelationships among mineral levels in soil, forage, and animal tissues 3. Manganese, iron, and cobalt”, PAB, vol. 16, no. 5, pp. 739–746, Apr. 2014.