Bourne, M., J. Childs, G. Philippidis, and M. Feijoo. “Controlling Greenhouse Gas Emissions in Spain: What Are the Costs for Agricultural Sectors?”. Spanish Journal of Agricultural Research 10, no. 3 (June 4, 2012): 567-582. Accessed May 4, 2025. https://sjar.revistas.csic.es/index.php/sjar/article/view/2334.