References

1997 International Plant Protection Convention (IPPC)

https://www.ippc.int/sites/default/files/documents/20130606/1329129099_ippc_2011-12-01_reformatted_2013060615%3A12--103.03%20KB.pdf

IPPC Standard Setting

https://www.ippc.int/core-activities/standards-setting

United Nations (UN) – Food and Agriculture Organization (FAO): Requirements for Phytosanitary Certificates

http://www.fao.org/docrep/004/y3241e/y3241e06.htm

UN-FAO: Global pact against plant pests marks 60 years in action, April 3, 2012. Rome, Italy

http://www.fao.org/news/story/en/item/131114/icode/