1. Trace minerals and livestock not too much not too little;López-Alonso;ISRN Vet. Sci.,2012
2. Panel on additives and products or substances used in animal feed (FEEDAP), guidance for the preparation of dossiers for nutritional additives;EFSA;EFSA J.,2012
3. Mineral Nutrition of Livestock;Suttle,2010
4. Evaluation of chronic hepatic copper accumulation in cattle;López-Alonso,2008