1. Anonymous 1988 The Bovine Spongiform Encephalopathy Order 1988 www.opsi.gov.uk/SI/si1988/Uksi_19881039_en_1.htm
2. Anonymous 1990 The Bovine Spongiform Encephalopathy (No 2) Amendment Order 1990 (SI 1990/1930) www.legislation.gov.uk/uksi/1990/1930/contents/made
3. Anonymous 1996 The Bovine Spongiform Encephalopathy Order 1996 (SI 1996/2007) www.opsi.gov.uk/SI/si1996/Uksi_19962007_en_1.htm
4. Anonymous 2000 Council Decision of 4 December 2000 concerning certain protection measures with regard to transmissible spongiform encephalopathies and the feeding of animal protein (2000/766/EC) http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2000:306:0032:0033:EN:PDF
5. Transmission dynamics and epidemiology of BSE in British cattle.;Anderson;Nature,1996