1. J. T. Kim, J. S. Kim, W. M. Park and J. H. Lee: The State-of-Art on Condition Monitoring in Nuclear Power Plants, I-NERY Project Year 1 Report (2002).
2. N. Y. Lee, C. B. Bahn, S. H. Oh, B. G. Park, I. S. Hwang, J. T. Kim, and V. K. Luk: Development of Condition Monitoring System of Erosion/Corrosion Phenomenon through Electrochemical and Vibration Sensors", SmiRT17, Prague, Czech Republic, Aug, (2003).
3. R. N. Thurston, A. D. Pierce: Ultrasonic Measurement Methods", Physical Acoustics, Voulum XIX, (1990).
4. J. J. J Dirckx, W. F. Decraener, J. L. Janssens: Real-time Shadow Moire Vibration Measurement: method featuring simple setup, high sensitivity, and exact calibration, App Optics 25, 3785-3788 (1986).
5. H. J. Tiziani, and J. Klenk: Vibration Analysis by Speckle Techniques in Real Time, App Optics 20, 1467-1470 (1981).