?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Beukert%2C+Christoph&rft.aulast=Beukert&rft.aufirst=Christoph&rft.date=2005&rft.title=Cost+driver+in+the+organic+meat+market+in+Germany+-+specific+problem+of+the+organic+sector%3F+&rft.genre=proceeding