Banhazi, Thomas M., H Lehr, J L Black, H Crabtree, P Schofield, M Tscharke, and D Berckmans. 2012. “Precision Livestock Farming: An International Review of Scientific and Commercial Aspects”. International Journal of Agricultural and Biological Engineering 5 (3):1-9. https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/599.