@conference{EURECOM+2151,
  author = {Önen, Melek and Molva, Refik},
  title = {Secure data aggregation with multiple encryption},
  booktitle = {EWSN 2007, 4th European conference on Wireless Sensor Networks, January 29-31, 2007, Delft, The Netherlands | Also published as LNCS Volume 4373},
  year = {2007},
  editor = {Springer},
  address = {Delft},
  note = {©  Springer. Personal use of this material is permitted. The definitive version of this paper was published in EWSN 2007, 4th European conference on Wireless Sensor Networks, January 29-31, 2007, Delft, The Netherlands | Also published as LNCS Volume 4373 and is available at : http://dx.doi.org/10.1007/978-3-540-69830-2\_8},
}