?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Line&rft.au=Hjort%C3%B8%2C+Line&rft.aulast=Hjort%C3%B8&rft.title=Definition+of+breeding+goals+for+dairy+breeds+in+organic+production+systems&rft.date=3+September+2015&rft.genre=proceeding