?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Cembalo%2C+Dr.+Luigi&rft.aulast=Cembalo&rft.aufirst=Luigi&rft.date=2006&rft.title=An+integrated+methodology+for+the+evaluation+of+organic+farming+support+scheme+environ-mental+effects+supported+by+Geographic+Information+Systems+(GIS)&rft.genre=proceeding