1. Perillo, M., Cheng, Z., & Heinzelman, W. (2005). An analysis of strategies for mitigating the sensor network hot spot problem. In The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services, 2005. MobiQuitous 2005.
2. Xiaobing, W., Guihai, C., & Das, S. K. (2008). Avoiding energy holes in wireless sensor networks with nonuniform node distribution. IEEE Transactions on Parallel and Distributed Systems, 19(5), 710–720.
3. Chen, Y., & Zhao, Q. (2005). On the lifetime of wireless sensor networks. IEEE Communications Letters, 9(11), 976–978.
4. Heinzelman, W., Kulik, J., & Balakrishnan, H. (2002). Negotiation-based protocols for disseminating information in wireless sensor networks. Wireless Networks, 8(2), 169–185.
5. Anastasi, G., et al. (2009). Energy conservation in wireless sensor networks: A survey. Ad Hoc Networks, 7(3), 537–568.