@article{LC:TWC:2007,
  author = {Fang Liu and Xiuzhen Cheng},
  title = {{LKE}: A Self-configuring Scheme for Location-aware Key Establishment in Wireless Sensor Networks},
  journal = {{IEEE} Transaction on Wireless Communications},
  volume = {7},
  number = {1},
  pages = {224--232},
  month = {January},
  year = {2008} 
}