1. ANON 2003 European Association for Animal Production Animal Genetic Database www.tihohannover.de/einricht/zucht/eaap/index.htm
2. Identification of 5 allelic variants of the sheep PrP gene and their association with natural scrapie;BELT;Journal of General Virology,1995
3. Guidance on the use of PrP genotyping as an aid to the control of clinical scrapie. Scrapie Information Group;DAWSON;Veterinary Record,1998
4. PrP genotype frequencies in German breeding sheep and the potential to breed for resistance to scrapie;DROGEMULLER;Veterinary Record,2001
5. Commission Decision 2002/1003/EC of December 18, 2002, laying down minimum requirements for a survey of prion protein genotypes of sheep breeds (Text with EEA relevance) (notified under document number C[2002] 5102);EUROPEAN COMMISSION;Official Journal,2002