References
- Fairbanks G., Everitt W. L., Jaeger R. P. Method for time or frequency compression-expansion of speech. Transactions of the Institute of Radio-engineers, Professional Group on Audio. 1954; 7–12, AUZ (1)
- Garvey W. D., Henneman R. H. Practical limits of recorded speech. 1950, (United States) Air Force Technical Report No. 5917