@InProceedings{CPS06,
  author = 		 {Haowen Chan and Adrian Perrig and Dawn Song},
  title = 		 {Secure Hierarchical In-network Aggregation for Sensor Networks},
  booktitle =	 {Proceedings of the ACM Conference on Computer and Communications Security},
  year =		 2006,
  month =		 oct,
  online =		 {http://www.cs.cmu.edu/~haowen/ccs06-chan-aggregation.pdf}
}