Corona, B., R. Lleonard, Y. Carpio, O. Uffo, and S. Martínez. 2013. “Short Communication. PCR Detection of DNA of Bovine, Ovine-Caprine and Porcine Origin in Feed As Part of a Bovine Spongiform Encephalopathy Control Program”. Spanish Journal of Agricultural Research 5 (3), 312-17. https://doi.org/10.5424/sjar/2007053-5342.