@article{1311,
  title = {Implementing secure group communications using key graphs},
  year = {2007},
  booktitle = {Defence Science Journal},
  journal = {Defence Science Journal},
  volume = {57},
  number = {2},
  publisher = {DRDO, DESIDOC},
  issn = {0011-748X},
  language = {eng},
  key = {946},
}