@Article{kautz1997referral,
  author = {Kautz, Henry and Selman, Bart and Shah, Mehul},
  title  = {Referral Web: combining social networks and collaborative filtering},
  journal = {Communications of the ACM},
  year   = {1997},
  number = {3},
  url    = {http://doi.acm.org/10.1145/245108.245123},
  doi = {10.1145/245108.245123},
  const  = {\ text}
}