1. Council Directive 98/57/EC of 20 July 1998 on the control of Ralstonia solanacearum (Smith) Yabuuchi et al;EU;Official Journal of the European Communities,1998
2. Commission Directive 2006/63/EC of 14 July 2006 amending the Annexes ii to VII to Council Directive 98/57/EC on the control of of Ralstonia solanacearum (Smith) Yabuuchi et al;EU;Official Journal of the European Communities,2006
3. EPPO Standards PM 4/28 Certification schemes – seed potatoes;OEPP/EPPO;Bulletin OEPP/EPPO Bulletin,1999
4. Pest-free areas and pest-free production and distribution systems for quarantine pests of potato
5. Normes OEPP . EPPO Standards. Commodity-specific phytosanitary measures . Mesures phytosanitaires par marchandise