1. Anon., 1995a. Ordonnance sur les Épizooties du 27 Juin 1995. Swiss Federal Veterinary Office, 89 pp.
2. Anon., 1995b. Art. 130: surveillance du cheptel suisse. In: Ordonnance sur les Épizooties du 27 Juin 1995. Swiss Federal Veterinary Office, 42 pp.
3. Anon., 1998a. Sanitary and phytosanitary measures. The WTO Agreements Series, Vol. 4. World Trade Organisation, Geneva.
4. Anon., 1998b. Council directive of 24 June 1998 amending Annexes A, D (Chapter I) and F to Directive 64/432/EEC on health problems affecting intra-community trade in bovine animals and swine, 98/46/EC, OJ No. L 198, July 15, p. 22.
5. Anon., 2000. International Animal-health Code, on IBR/IPV. World Organisation for Animal-health (OIE), Paris, France (Chapter 2.3.5).