1. Animalia, 2008. Annual report. Norwegian Sheep Recording System, Oslo.
2. Directorate for Nature Management, 2009. http://dnweb10.dirnat.no/Rovforum/ErstSok.aspx.
3. The welfare of the neonatal lamb;Dwyer;Small Rumin. Res.,2008
4. Sustainability of sheep and goat production in North European countries—from the Artic to the Alps;Dýrmundson;Small Rumin. Res.,2006
5. The development of artificial insemination in sheep and goat in Iceland;Dýrmundson,2007