Sousa, J. C. de; Corad, J. H.; McDowell, L. R.; Ammerman, C. B.; Blue, W. G. Interrelationship Among Mineral in Soil, Forage, and Animal Tissues 2. Copper and Molybdenum. PAB 2014, 15 (3), 335-341. https://doi.org/10.1590/S1678-3921.pab1980.v15.18091.