@article{LiMa07,
  author =       {Lijun Liao and Mark Manulis},
  title =        {{T}ree-{B}ased {G}roup {K}ey {A}greement {F}ramework for {M}obile {A}d-{H}oc {N}etworks},
  journal =      {Future Generation Computer Systems (FGCS)},
  year =         {2007},
  volume =       {23},
  number =       {6},
  pages =        {787--803},
  month =        {July},
}