?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=La+Torre%2C+Anna&rft.aulast=La+Torre&rft.aufirst=Anna&rft.date=2007&rft.title=More+years+of+field+trials+against+Plamopara+viticola+in+organic+viticulture&rft.genre=proceeding