Bundessortenamt – Variety testing, Germany

CPVO – Community Plant Variety Office

European Commision – Plant variety database

Jordbruksverket – Variety testing, Sweden

Landbrugsstyrelsen – The Danish Agricultural Agency

Retsinformation – Danish Law

Raad voor plantenrassen – Variety testing, The Netherlands

SEGES – Dansk Landbrugsrådgivning

Scandinavian Turfgrass Testing – VCU testing of turfgrass between Denmark, Finland, Sweden and Norway

UPOV – Den Internationale Union for Plantenyhedsbeskyttelse – International Union for the Protection of New Varieties of Plants