@inproceedings{twinroute,
  title = "TwinRoute: Energy-Efficient Data Collection in Fixed Sensor Networks with Mobile Sinks",
  author = "Ricklef Wohlers and Niki Trigoni and Rui Zhang and Stephen Ellwood",
  year = "2009",
  booktitle = "Proceedings of the 10th International Conference on Mobile Data Management: Systems, Services and Middleware (MDM)",
  month = "May",
}