?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Bestman%2C+Msc+Monique&rft.aulast=Bestman&rft.aufirst=Monique&rft.date=2006&rft.title=Feather+pecking+in+organic+rearing+hens&rft.genre=proceeding