@Incollection{choi2005classification,
  author = {Choi, B. and Yao, Z.},
  title  = {Web Page Classification},

  year   = {2005},
  number = {},
  url    = {http://dx.doi.org/10.1007/11362197_9},
  doi = {10.1007/11362197_9},
  const  = {\ text}
}