@InProceedings{lopsil,
  author = "Jay Ligatti and Billy Rickey and Nalin Saigal",
  title = "{LoPSiL}: A Location-based Policy-specification Language",
  booktitle = "International {ICST} Conference on Security and Privacy in Mobile Information and Communication Systems ({MobiSec})",
  year = 2009,
  month = jun,
  url = {http://www.cse.usf.edu/~ligatti/papers/MobiSec09.pdf}
}