}
+@inproceedings{vu2009universal,
+ title={A universal framework for partial coverage in Wireless Sensor Networks},
+ author={Vu, Chinh and Chen, Guantao and Zhao, Yi and Li, Yingshu},
+ booktitle={Performance Computing and Communications Conference (IPCCC), 2009 IEEE 28th International},
+ pages={1--8},
+ year={2009},
+ organization={IEEE}
+}
+
+@article{li2011transforming,
+ title={Transforming complete coverage algorithms to partial coverage algorithms for wireless sensor networks},
+ author={Li, Yingshu and Vu, Chinh and Ai, Chunyu and Chen, Guantao and Zhao, Yi},
+ journal={Parallel and Distributed Systems, IEEE Transactions on},
+ volume={22},
+ number={4},
+ pages={695--703},
+ year={2011},
+ publisher={IEEE}
+}
+
+@article{wang2014keeping,
+ title={Keeping Desired QoS by a Partial Coverage Algorithm for Cluster-Based Wireless Sensor Networks},
+ author={Wang, Lei and Yang, Jui-Yu and Lin, Yu-Yun and Lin, Wei-Jun},
+ journal={Journal of Networks},
+ volume={9},
+ number={12},
+ pages={3221--3229},
+ year={2014}
+}
+
+@ARTICLE{1279193,
+author={Kumagai, J.},
+journal={Spectrum, IEEE},
+title={Life of birds [wireless sensor network for bird study]},
+year={2004},
+volume={41},
+number={4},
+pages={42-49},
+month={April}
+}
