"Detection of Smooth Bondings of Polymer Coatings by Ultrasound Spectroscopy", by Y. Tsukahara and K. Ohira, Ultrasonics, 1989 vol. 27. Jan., pp. 3-7. |
"Werkstoffprufung mit Ultraschall" by J. Krautkramer and H. Krautkramer, 5th Edition, 1986 pp. 356-359. |
"High -Frequency Ultrasonic Testing of Bonds: Application to Silicon Power Devices" by R. S. Gilmore, M. L. Torreno, G. J. Czerw and L. B. Burnet (Materials Evaluation) Jan. 1979 pp. 65-72. |
"Ultraschallprufung an dunner Bauteilen mit Frequenzen uber 20 MHz" by E. Neumann, E. Nabel, and K. Matthies (Materialpruf) (Aug. 1978) pp. 291-294. |
"Ultrasonic System for imaging delaminations in composite materials", by P. A. Lloyd (Ultrasonics) vol. 27 Jan. 1989 pp. 8-18. |