?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Caballero%2C+Berta&rft.aulast=Caballero&rft.aufirst=Berta&rft.date=2006&rft.title=The+role+of+intercropping+on+insects+diversity+in+dryland+field+crops+in+a+Mediterranean+site+&rft.genre=proceeding