?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hadjigeorgiou%2C+Dr+Ioannis&rft.aulast=Hadjigeorgiou&rft.aufirst=Ioannis&rft.date=2006&rft.title=A+Portal+Technology+to+support+European+Organic+Animal+Production+&rft.genre=proceeding