?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Mikkola%2C+Minna+&rft.aulast=Mikkola&rft.date=20+August+2009&rft.title=From+catering+organisations+to+environmental+and+health+related+public+catering+systems&rft.genre=proceeding