@article{1115,
  author = {Kuan Zhang and Xiaohui Liang and Rongxing Lu and Xuemin Shen},
  title = {Sybil attacks and their defenses in the internet of things},
  year = {2014},
  journal = {IEEE Internet of Things Journal},
  volume = {1},
  number = {5},
  pages = {372-383},
  publisher = {IEEE},
}