?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Kroupov%C3%83%C2%A1%2C+P.&rft.aulast=Kroupov%C3%83%C2%A1&rft.aufirst=P.&rft.date=2006&rft.title=The+application+of+homeopathic+preparation+as+a+prevention+of+diarrhoea+of+newborn+calves&rft.genre=proceeding