?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Sundrum%2C+Prof.+Dr.+Albert&rft.aulast=Sundrum&rft.aufirst=Albert&rft.date=2006&rft.title=Possibilities+and+limitations+of+protein+supply+in+organic+poultry+and+pig+production&rft.genre=proceeding