?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nettier%2C+B.&rft.aufirst=B.&rft.aulast=Nettier&rft.title=Conversion+to+organic+farming+and+consequences+on+work+organisation+and+work+perception&rft.date=1+July+2012&rft.genre=proceeding