@Inproceedings{scripps2007roles,
  author = {Scripps, Jerry and Tan, Pang-Ning and Esfahanian, Abdol-Hossein},
  title  = {Node roles and community structure in networks},

  year   = {2007},
  number = {},
  url    = {http://doi.acm.org/10.1145/1348549.1348553},
  doi = {http://doi.acm.org/10.1145/1348549.1348553},
  const  = {\ text}
}