@article{ Deng12-IJDSN,
  author = {J. Deng and S. C.-H. Huang and Y. S. Han},
  title = {An On-line Relay Selection Scheme in Power Controllable Wireless
Sensor Networks},    
  journal = {Hindawi International Journal of Distributed Sensor Networks},
  volume = {2012},
  number = {},
  pages = {1-13},
  month = {May},
  year = {2012} }