@INCOLLECTION{healy2006,
  AUTHOR =       {John Healy and Jeannette Janssen and Evangelos Milios and William Aiello},
  TITLE =        {Characterization of graphs using degree cores},
  BOOKTITLE =    {Algorithms and Models for the Web-Graph: Fourth International Workshop, WAW 2006},
  PUBLISHER =    {Springer Verlag},
  YEAR =         {2008},
  volume =       {LNCS-4936},
  series =       {Lecture Notes in Computer Science},
  address =      {Banff, Canada},
  month =        {Nov. 30 - Dec. 1}
}