I'm having trouble finding the following reports/articles:
Grey, G. and G. A. Kopp (1944). "Voiceprint identification." Bell Telephone Laboratories Report: 1–14.
Potter, R. (1945). "Visible patterns of speech." Science November: 463–470
R. Becker, F. Clarke, F. Poza, and J. Young. A semiautomatic speaker recognition system. Technical Report 71-078-G, SRI, 1972.
Hollien H, Bennett G & Gelfer MP (1983) 'Criminal InvestigationComparison: Aural versus Visual Identification Resulting from a Simulated Crime', Journal of Forensic Sciences 28, 208-222
Can anyone help me? Thanks in advance.