?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Bichler%2C+Barbara&rft.aulast=Bichler&rft.aufirst=Barbara&rft.date=2005&rft.title=Determinants+of+Spatial+Distribution+of+Organic+Farming+in+Germany&rft.genre=proceeding