Jessen, Michael. “Annual Meeting of the International Association for Forensic Phonetics and Acoustics, Helsinki, 28-31 July 2004 - NOTE: PDF Unavailable”. International Journal of Speech, Language and the Law, vol. 11, no. 2, Aug. 2004, pp. 278-92, https://doi.org/10.1558/ijsll.v11i2.278.