1. Dean, D. J. (1991) The Relevance of Replay Transients in the Forensic Examination of Analogue Magnetic Tape Recordings, Publication No.16, London: Police Scientific Research and Development Branch, Home Office.
2. French, J. P. (1993) `Authenticity examinations of audio recordings', in Proceedings of the Institute of Acoustics, Vol. 15, Part 7, Liverpool: Rayross.
3. Grigoras, C. (2001) `Digital audio evidence analysis', paper presented to Advanced Topics in Electrical Engineering Symposium, Bucharest.
4. Grigoras, C. (2002) `Forensic audio systems', paper presented to IAFP Annual Conference, Moscow.