A. M. Shirhole and R. C. Holt, “Planning for a Comprehensive Bridge Safety Program,” Transportation Research Record No. 1290, Transportation Research Board, National Research Council, Washington, D.C., 1991.
 P. F. Lagasse, E. V. Richardson, J. D. Schall and G. R. Price, “Instrumentation for Measuring Scour at Bridge Piers and Abutments,” National Cooperative Highway Research Program (NCHRP) Paper No. 396, Transportation Research Board, National Research Council, Washington, D.C., 1997.
 N. E. Yankielun and L. Zabilansky, “Laboratory Investigation of Time-Domain Reflectometry System for Monitoring Bridge Scour,” Journal of Hydraulic Engineering, Vol. 125, No. 12, 1999, pp. 1279-1284. http://dx.doi.org/10.1061/(ASCE)0733-9429(1999)125:12(1279)
 Y. B. Lin, J.-C. Chen, K.-C. Chang, J.-C. Chern and J.-S. Lai, “Real Time Monitoring of Bridge Scour Using Fiber Bragg Grating Sensors,” Smart Materials and Structures, Vol. 14, No. 4, 2005, pp. 664-670. http://dx.doi.org/10.1088/0964-1726/14/4/025
 J. -Y. Lu, J. -H. Hong, C. -C. Su, C. -Y. Wang and J. -S. Lai, “Field Measurements and Simulation of Bridge Scour Depth Variation During Floods,” Journal of Hydraulic Engineering, Vol. 134, No. 6, 2008, pp. 810-821. http://dx.doi.org/10.1061/(ASCE)0733-9429(2008)134:6(810)
 N. B. Priyantha, A. Chakraborty and H. Balakrishnan, “Cricket Location Support System,” Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM, 2000, pp. 32-43.
 J. Heidemann, W. Ye, J. Wills, A. Syed and Y. Li, “Research Challenges and Applications for Underwater Sensor Networking,” IEEE Wireless Communications and Networking Conference, WCNC, Vol. 1, 2006, pp. 228- 235.
 M. Erol, L. Vieira, A. Caruso, F. Paparella, M. Gerla and S. Oktug, “Multi Stage Underwater Sensor Localization Using Mobile Beacons,” Second International Conference on Sensor Technologies and Applications, 2008. SENSOR-COMM ‘08, 2008, pp. 710-714.
 E. Kim, S. Woo, C. Kim and K. Kim, “Lamsm: Localization Algorithm with Merging Segmented Maps for Underwater Sensor Networks,” Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 4809 NCS, 2007, pp. 445-454.
 M. Hosseini, H. Chizari, C. K. Soon and R. Budioarto, “RSS-Based Distance Measurement in Underwater Acoustic Sensor Networks: An Application of the Lambert W Function,” Proceedings of the 4th International Conference on Signal Processing and Communication Systems, ICSPS, Gold Coast, 2010, pp. 1-4.
 I. F. Akyildiz, D. Pompili, T. Melodia, “Challenges for Efficient Communication in Underwater Acoustic Sensor Networks,” ACM SIGBED Review-Special Issue on Embedded Sensor Networks, ACM, NY, 2004, pp. 3-8.
 J. A. Catipovic, A. B. Baggeroer, K. Von Der Heydt and D. Koelsch, “Design and Performance Analysis of a Digital Telemetry System for Short Range Underwater Channel,” IEEE Journal of Oceanic Engineering, Vol. OE-9, No. 4, 1984, pp. 242-252. http://dx.doi.org/10.1109/JOE.1984.1145632
 X. Geng and A. Zielinski, “An Eigenpath Underwater Acoustic Communication Channel Model,” OCEANS ‘95. MTS/IEEE, Challenges of Our Changing Global Envi-ronment, Conference Proceedings, Vol. 2, 1995, pp. 1189-1196.
 Q. Liang and X. Cheng, “Underwater Acoustic Sensor Networks: Target Size Detection and Performance Analysis,” Proceedings of IEEE International Conference on Communications, Beijing, May 2008, pp. 3151-3155.