?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Niggli%2C+Urs&rft.aulast=Niggli&rft.aufirst=Urs&rft.date=2004&rft.title=Seminar+on+Organic+Food+and+Farming+research+in+Europe%2C+Brussels%2C+November+26+2004.+National+report+from%3A+Switzerland+&rft.genre=proceeding