@article{structureandinferenceinannotatednetworks,
  title = {Structure and inference in annotated networks},
  author = {M. E. J. Newman and Aaron Clauset},
  year = {2015},
  eprint = {1507.04001},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.04001v1},
}