1. Anon, 2010. www.sciquest.org.nz/elibrary/publication/109 (accessed 08.03.11).
2. Anon, 2011a. www.animalhealthsurveillance.org/ (accessed 08.03.11).
3. Anon, 2011b. www.farmassist.com/Alerts/AlertDetail.aspx?CropPage=&alertid=136820&AlertType=41&AlertTypeName=Ag%20News%20Headlines&type=FA_AGNEWSALL. Canadian Cattlemen's Association. Unique zoning initiative reduces risk and impact of animal disease (accessed 09.03.11).
4. Detection of ultra-low lelvels of pathologic prion protein in scrapie infected hamster brain homogenates using real-time immuno-PCR;Barletta;J. Virol. Methods,2005
5. The price of the precautionary principle: Cost-effectiveness of BSE intervention strategies in the Netherlands;Benedictus;Prev. Vet. Med.,2009