@inproceedings{yang2010accuracy,
  title={Accuracy characterization of cell tower localization},
  author={Yang, J. and Varshavsky, A. and Liu, H. and Chen, Y. and Gruteser, M.},
  booktitle={Proceedings of the 12th ACM international conference on Ubiquitous computing},
  pages={223--226},
  year={2010},
  organization={ACM}
}