@article{lazos7chs,
  title={{
On the Deployment of Heterogeneous Sensor Networks for Detection of Mobile Targets}},
  author={Lazos, L. and Poovendran, R. and Ritcey, A. J.},
  journal={Proceedings of the 5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt},
  volume={6}
  year={2007}
}