@Incollection{Haase04Personalized,
  author = {Haase, Peter and Ehrig, Marc and Hotho, Andreas and Schnizler, Björn},
  title  = {Personalized Information Access in a Bibliographic Peer-to-Peer System},

  year   = {2006},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{haase04personalized,
  author = {Haase, Peter and Ehrig, Marc and Hotho, Andreas and Schnizler, Bj{\"{o}}rn},
  title  = {Personalized Information Access in a Bibliographic Peer-to-Peer System},

  year   = {2004},
  number = {},
  url    = {http://www.kde.cs.uni-kassel.de/hotho/pub/2004/haase04person.pdf},

  const  = {\ text}
}