1. CAC 2002 Codex Alimentarius Commission Principles and Guidelines for the Conduct of Microbiological Risk Assessment
2. EFSA (European Food Safety Authority) 2006 Scientific Colloquium “Principles of Risk Assessment of Food Producing Animals: Current and future approaches” www.efsa.europa.eu/en/supporting/pub/111e.htm
3. Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on a request from the Commission related with the risks of poor welfare in intensive calf farming systems;EFSA (European Food Safety Authority);The EFSA Journal,2006a
4. EFSA (European Food Safety Authority) 2007 Basic Information for the Development of the Animal Welfare Risk Assessment Guidelines www.efsa.europa.eu/en/supporting/pub/147e.htm
5. Scientific Opinion of the Panel on Animal Health and Welfare on a request from the Commission on animal health and welfare in fattening pigs in relation to housing and husbandry;EFSA (European Food Safety Authority);The EFSA Journal,2007a