@InProceedings{On_the_Structural_Properties_of_Massive_Telecom_Call_Graphs_Findings_and_Implications,
  author = "Amit	 A. Nanavati and Siva  Gurumurthy and Gautam  Das and Dipanjan  Chakraborty and Koustuv  Dasgupta and Sougata 	  Mukherjea and Anupam  Joshi",
  title = "{On the Structural Properties of Massive Telecom Call Graphs: Findings and Implications}",
  month = "November",
  year = "2006",
  pages = "435-444",
  booktitle = "Proceedings of the 15th ACM international conference on Information and knowledge management",
}