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2. Opinion-distribution model for subjective rating studies;Allnatt;Int. J. Man-Machine Studies,1973
3. Subjective quality of television pictures impaired by long-delayed echoes;Allnatt;Proc. IEE,1965
4. Application of the logistic function to bio-essay;Berkson;J. Amer. Stat Assoc.,1944
5. International telecommunication development;Bray;Electronics and Power,1973