@article{kgdd-mmvsm-02,
  author = {T. T. Kwon and M. Gerla and S. Das and S. Das},
  title = {{Mobility Management for VoIP Service: Mobile IP vs. SIP}},
  journal = {IEEE Wireless Communications},
  pages = {66--75},
  volume = {9},
  number = {5},
  year = {2002},
  month = {October}
}