1. 1. C. Savarese, J. Rabay, and K. Langendoen. Robust positioning algorithms for distributed ad-hoc wireless sensor networks. in usenix technical annual conference, june 2002.
   2. Biswas,Pratik, and yinyu ye. "semidefinite programming for ad hoc wireless sensor network localization." proceedings of the 3rd international symposium on information processing in sensor networks. Acm, 2004.
   3. cardei, mihaela, and ding-zhu du. "improving wireless sensor network lifetime through power aware organization." wireless networks 11.3 (2005): 333-340. [4] k. Sohrabi, “on low power wireless sensor networks,” ph.d. Dissertation, department of electrical engineering, ucla, june 2000
   4. g. J. Pottie and w. J. Kaiser,`` wireless integrated network sensors‟‟, communications of the acm,
   5. j. l. gao, ``energy efficient routing for wireless sensor networks,” ph.d. dissertation, department of electrical engineering, ucla, june 2000.
   6. yick, jennifer, biswanath mukherjee, and dipak ghosal. "wireless sensor network survey." computer networks 52.12 (2008): 2292-2330.
   7. s. roundy, j.m. rabaey, p.k. wright, energy scavenging for wireless sensor networks, springer-verlag, new york, llc, 2004.
   8. w. heinzelman, a. chandrakasan, and h. balakrishnan, ―an application-specific protocol architecture for wireless microsensor networks,‖ ieee transaction on wireless communications, 2002, vol. 1, no. 4, pp. 660–670.
   9. m. li, y. liu, underground structure monitoring with wireless sensor networks, in: proceedings of the ipsn, cambridge, ma, 2007
   10. werner-allen, geoffrey, et al. "monitoring volcanic eruptions with a wireless sensor network." wireless sensor networks, 2005. proceeedings of the second european workshop on. ieee, 2005.