|| M. Biguesh and S. Gazor, “On Proper Antenna Pattern for a Simple Source Detection and Localization System,” IEEE Transactions on Antennas and Propagation, vol. 57, no. 4, pp. 1073-1080, Apr. 2009.|
 N. Bulusu, J. Heidemann and D. Estrin, ”GPS-less Low Cost Outdoor Localization For Very Small Devices,” IEEE Personal Communications Magazine, vol. 7, no. 5, pp. 28-34, Oct. 2000.
 Cisco Syst. Inc. and S. Jose, “Sequence-Based Localization in Wireless Sensor Networks,” IEEE Transactions on Mobile Computing, vol. 7, no. 1, pp. 81-94, Jan. 2007.
 L. Doherty, K. S. J. Pister and L. E. Ghaoui, “Convex Position Estimation in Wireless Sensor Networks,” in Proceedings of INFOCOM, vol. 3, pp. 1655-1663, USA, Apr. 2001.
 D. K. Goldenberg, P. Bihler, M. Cao, J. Fang, B. D. O. Anderson, A. S. Morse and Y. R. Yang, “Localization in Sparse Networks using Sweeps,” in Proceedings of MobiCom, pp. 110-121, Sep. 2006.
 T. He, C. Huang, B. M. Blum, J. A. Stankovic and T. Abdelzher, ”Range-Free Localization Schemes for Large Scale Sensor Networks,” in Proceedings of MobiCom, pp. 81-95, Sep. 2003.
 J. Hightower and G. Borriello, ”Location Systems for Ubiquitous Computing,” IEEE Computer, vol. 34, no. 8, pp. 57-66, Aug. 2001.
 L. Hu and D. Evans, “Localization for Mobile Sensor networks,” in Proceedings of MobiCom, pp. 45-47, Sep. 2004.
 A. A. Kannan, B. F. and G. Mao, “Robust Distributed Sensor Network Localization Based on Analysis of Flip Ambiguities,” in Proceedings of GLOBECOM, pp. 1-6, Nov. 2008.
 J. Yi, J. Koo and H. Cha, “A Localization Technique for Mobile Sensor Networks using Archived Anchor Information,” in Proceedings of SECON, pp. 64-72, June 2008.
 M. Li and Y. Liu, “Rendered Path: Range-Free Localization in Anisotropic Sensor Networks with Holes,” in Proceedings of MobiCom, pp. 51-62, Sep. 2007.
 H. Luo, Y. Zhao, Z. Guo, S. Liu, P. Chen and L.M. Ni, “UDB: Using Directional Beacons for Localization in Underwater Sensor Networks,” in Proceedings of ICPADS, pp. 551-558, Dec. 2008.
 J. Luo and Q. Zhang, “Relative Distance Based Localization for Mobile Sensor Networks,” in Proceedings of GLOBECOM, pp. 1076-1080, Nov. 2007.
 A. Nasipuri and K. Li, “A Directionality Based Location Discovery Scheme for Wireless Sensor Networks,” in Proceedings of WSNA, pp. 105-111, Sep. 2002.
 D. Niculescu and B. Nath, ”Ad Hoc Positioning System (APS),” in Proceedings of GLOBECOM, pp. 2926-2931, vol. 1, Nov. 2001.
 D. Niculescu and B. Nath, “Ad Hoc Positioning System (APS) Using AOA,” in Proceedings of INFOCOM, vol. 3, pp. 1734-1743, Apr. 2003.
 G. J. Pottie and W. J. Kaiser, “Wireless Integrated Network Sensors,” Communications of the ACM, vol. 43, no. 5, pp. 51–58, May 2000.
 N. B. Priyantha, A. Chakraborty and H. Balakrishnan, “The Cricket Location-Support System,” in Proceedings of MobiCom, pp. 32-43, Aug. 2000.
 M. Rudafshani and S. Datta, “Localization in Wireless Sensor Networks,” in Proceedings of IPSN , pp. 51-60, Apr. 2007.
 A. Savvides, C. C. Han and M. B. Strivastava, “Dynamic Fine-Grained Localization in Ad-Hoc Networks of Sensors,” in Proceedings of MobiCom, pp. 166-179, July 2001.
 J. P. Sheu, P. C. Chen and C. S. Hsu, “A Distributed Localization Scheme for Wireless Sensor Networks with Improved Grid-Scan and Vector-Based Refinement,” IEEE Transactions on Mobile Computing, vol. 7, no. 9, pp. 1110-1123, Sep. 2008.
 M. L. Sichitiu and V. Ramadurai, “Localization of Wireless Sensor Networks with a Mobile Beacon,” in Proceedings of MASS, pp. 174-183, Oct. 2004.
 K. F. Ssu, C. H. Ou, and H. C. Jiau, “Localization with Mobile Anchor Points in Wireless Sensor Networks,” IEEE Transactions on Vehicular Technology, vol. 54, no. 3, pp. 1187-1197, May 2005.
 Y. Sun, J. Xiao, X. Li and F. C. Mora, “Adaptive Source Localization by a Mobile Robot Using Signal Power Gradient in Sensor Networks,” in Proceedings of GLOBECOM, pp. 1-5, Dec. 2008.
 V. Vivekanandan and V. W. S. Wong, “Concentric Anchor Beacon Localization Algorithm for Wireless Sensor Networks,” IEEE Transactions on Vehicular Technology, vol. 56, no. 2, pp. 2733-2744, Spt. 2007.
 Z. You, M. Q. H. Meng, H. Liang, S. Li, Y. Li, W. Chen, Y. Zhou, S. Miao, K. Jiang and Q. Guo, “A Localization Algorithm in Wireless Sensor Networks Using a Mobile Beacon Node,” in Proceedings of ICIA, pp. 420-426, Jul. 2007.