?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Speiser%2C+B.&rft.aulast=Speiser&rft.aufirst=B.&rft.date=2006&rft.title=Evaluation+and+registration+of+plant+protection+inputs+for+organic+farming&rft.genre=proceeding