?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Kelly%2C+Hilary&rft.aulast=Kelly&rft.aufirst=Hilary&rft.date=2002&rft.title=The+effect+of+different+paddock+rotation+strategies+for+organic+sows+on+behaviour%2C+welfare+and+the+environment&rft.genre=proceeding