?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Lammerts+van+Bueren%2C+prof.dr.+Edith+T.&rft.aulast=Lammerts+van+Bueren&rft.aufirst=Edith+T.&rft.date=2006&rft.title=Organic+plant+breeding%3A+a+challenge+for+practice+and+science&rft.genre=proceeding