1. N. Taniguchi, E. Isono, T. Udagawa: AE technique for exploring crack initiation and propagation. -Some cases applied for brittle fracture tests, AEWG Meeting (Richland, USA), June 1973, pp. 21.
2. 5) G. R. Speich & R. M. Fisher: “Acoustic emission during martensite formation,” ASTM STP 505, 140-151 (1972).
3. 6) C. E. Hartbower, W. Reuter, F. J. Morais & P. P. Crimmins: “Use of acoustic emission for the detection of weld and stress corrosion cracking,” ASTM STP 505, 187-221 (1972).
4. 7) H. L. Balderston: “The broad range detection of incipient failure using the acoustic emission phenomena,” ASTM STP 105, 297-317.
5. 8) A. S. Tetelman: “Acoustic emission and fracture mechanics,” US-Japan Joint Symposium on Acoustic Emission (1972).