@article{mccallum2007topic,
  author = {McCallum, A. and Wang, X. and Corrada-Emmanuel, A.},
  interhash = {56511b795458d88811bffd6ad8ec1e89},
  intrahash = {e7a6d3c9bd46ddc77a62e04d35aff330},
  journal = {Journal of Artificial Intelligence Research},
  pages = {249--272},
  title = {{Topic and role discovery in social networks with experiments on enron and academic email}},
  url = {http://scholar.google.de/scholar.bib?q=info:GVi_TXpyWz8J:scholar.google.com/&output=citation&hl=de&ct=citation&cd=0},
  volume = 30,
  year = 2007
}

@article{griffiths_steyvers04,
  author = {Griffiths, T. L. and Steyvers, M.},
  interhash = {387a5060792d52ea73b02dd68e52559e},
  intrahash = {49705b433fcb5b87c0a3a140c40f9a4d},
  journal = {Proceedings of the National Academy of Sciences},
  month = {April},
  number = {Suppl. 1},
  owner = {heinrich},
  pages = {5228-5235},
  title = {Finding scientific topics},
  volume = 101,
  year = 2004
}