1. RussellW.M.S. & BurchR.L. (1959). The Principles of Humane Experimental Technique, 238 pp. London, UK: Methuen.
2. Anon. (2008). Proposal for a Directive of the European Parliament and of the Council on the Protection of Animals Used for Scientific Purposes. COM(2008) 543/5 2008/xxxx (COD), 92 pp. Brussels, Belgium: European Commission.