?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Jensen%2C+Erik+Steen&rft.aulast=Jensen&rft.aufirst=Erik+Steen&rft.date=2005&rft.title=Intercropping+%C3%A2%C2%80%C2%93+The+practical+application+of+diversity%2C+competition%2C+and+facilitation+in+arable+and+organic+cropping+systems&rft.genre=proceeding