1. Tillapart, Piyakul, Sanguan Thammarojsakul, Thanachai Thumthawatworn, and Pratit Santiprabhob. “An approach to hybrid clustering and routing in wireless sensor networks.” DOI: 10.1109/AERO.2005.1559523 , In Aerospace Conference, IEEE, pp. 1–8, IEEE, 2005.
2. Ryu, J-H., S. Song, and D-H. Cho. “Energy-conserving clustering scheme for multicasting in two-tier mobile ad-hoc networks.” Electronics Letters, vol. 37, issue 20, pp. 1253–1255, 2001.
3. Hou, T-C., and T-J. Tsai. “Distributed clustering for multimedia support in mobile multihop ad hoc networks.” IEICE transactions on communications, vol. 84, issue 4, pp. 760–770, 2001.
4. Heinzelman, Wendi Rabiner, Anantha Chandrakasan, and Hari Balakrishnan. “Energy-efficient communication protocol for wireless microsensor networks.” In System sciences, Proceedings of the 33rd annual Hawaii international conference, pp. 1–10, IEEE, 2000.
5. Younis, Mohamed, Moustafa Youssef, and Khaled Arisha. “Energy-aware management for cluster-based sensor networks.” Computer networks, doi: 10.1016/S1389-1286(03)00305-0 , vol. 43, issue 5, pp. 649–668, 2003.