?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Jong%2C+Ir.+P.F.+de&rft.aulast=Jong&rft.aufirst=P.F.+de&rft.date=2006&rft.title=Enhancement+of+degradation+of+fallen+apple+leaves&rft.genre=proceeding