8. References
- Asano , M. , Kamada , T. , Kunieda , M. and Rokugo , K. 2003 . “Impact acoustics methods for defect evaluation in concrete” . In Proceedings International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE) Berlin
- Davis , A. G. , Lima , M. K. and Germann Petersen , C . 2005 . “Rapid and economical evaluation of concrete tunnel linings with impulse response and impulse radar non-destructive methods” . NDT&E International , 38 ( n° 3 ) : 181 – 186 .
- Haya , H. , Luo , X. and Uomoto , T. 2003 . “Study on impact acoustic method and system development based on wavelet” . In Proceedings International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE) Berlin
- Krause , M. , Bärmann , M. , Frielinghaus , R. , Kretzschmar , F. , Kroggel , O. , Langenberg , K. J. , Maierhofer , C. , Müller , W. , Neisecke , J. , Schickert , M. , Schmitz , V. , Wiggenhauser , H. and Wollbold , F. 1997 . “Comparison of pulse-echo methods for testing concrete” . NDT&E International , 30 ( n° 4 ) : 195 – 204 .
- Weritz , F. , Wedler , G. , Brink , A. , Röllig , M. , Maierhofer , C. and Wiggenhauser , H. 2003 . “Investigation of concrete structures with Pulse Phase Thermography” . In Proceedings International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE) Berlin
- Zhu , J. and Popovics , J. S. 2006 . “Air-coupled impact-echo imaging of concrete structures” . In Proceedings of NDE Conference on Civil Engineering St. Louis 423 – 428 .