NAK
Plantum
NIVAP
Community Plant Variety Office
International union for the protection of new varieties of plants
Food and Agriculture Organization of the United Nations
International Year of the Potato 2008
www.nak.nl/english.asp
www.plantum.nl/english/indexengl.htm
www.aardappelpagina.nl/de
www.cpvo.europa.eu
www.upov.int
www.fao.org
www.potato2008.org
