@INPROCEEDINGS{lifton_2005_04_ipsn,
  author =       {Joshua Lifton and Michael Broxton and Joseph Paradiso},
  title =        {{Experiences and Directions in Pushpin Computing}},
  booktitle =    {{Proceedings of the 2005 Symposium on Information Processing in Sensor Networks (IPSN)}},
  year =         {2005},
  month =        {April}, 
  pages =        {416-421}
}