1. Untersuchungen uber das Auftreten von Gerauschen beim Zugversuch;Kaiser,1950
2. Acoustic emission under applied stress;Schofield;Air Force Lab Tech Rept No ASD-TDR-63-509 Part I,1963
3. Acoustic emission under applied stress;Schofield;Air Force Lab Tech Rept No ASD-TDR-63-509 Part II,1964
4. Some techniques in the detection of crystal slip in metals;Tatro,1959
5. Defect location system;Dukes;RAE Newsletter on the non-destructive testing of composite materials and adhesive joints,1973