?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Wagenaar%2C+J.P.T.M.&rft.aulast=Wagenaar&rft.aufirst=J.P.T.M.&rft.date=2007&rft.title=Suckling+systems+in+calf+rearing+in+organic+dairy+farming+in+the+Netherlands&rft.genre=proceeding