1. 1. Akyildiz, I.F., Su, W., Sankarasubramaniam, Y., & Cayirci E. (2002). Wireless sensor networks. A Survey. Computer Networks, 38(2), 2002, pp. 393–422.
   2. Yick, J., Mukherjee, B. & Ghosal, D. (2008). Wireless sensor network survey. Computer Networks, 52(12), 2292–2330.
   3.  Mhatre, V. & Rosenberg, C. (2004). Design guidelines for wireless sensor networks: communication, clustering, and aggregation. Ad Hoc Networks, 2(1), 45– 63.
   4. Lewis, F. L. (2004). Wireless sensor networks. Smart environments: technologies, protocols, and applications, 11-46.
   5. Elson, J., & Römer, K. (2003). Wireless sensor networks: A new regime for time synchronization. ACM SIGCOMM Computer Communication Review,33(1), 149-154.
   6. Akkaya, K., & Younis, M. (2005). A survey on routing protocols for wireless sensor networks. Ad hoc networks, 3(3), 325-349
   7. Al-Karaki, J. N., & Kamal, A. E. (2004). Routing techniques in wireless sensor networks: a survey. Wireless communications, IEEE, 11(6), 6-28.
   8.  Sohrabi, K., Gao, J., Ailawadhi, V., & Pottie, G. J. (2000). Protocols for self-organization of a wireless sensor network. IEEE personal communications,7(5), 16- 27.
   9. Kulkarni, R. V., Forster, A., & Venayagamoorthy, G. K. (2011). Computational intelligence in wireless sensor networks: A survey. Communications Surveys & Tutorials, IEEE, 13(1), 68-96.
   10. Murthy, C. S. R., & Manoj, B. S. (2004). Ad hoc wireless networks: Architectures and protocols. Pearson education.