1. Abelson, R.P., Tukey, J.W.: Efficient conversion of nonmetric information into metric information. In: Proceedings of the American Statistical Association Meetings, Social Statistics Section, pp. 226–230 (1959)
2. Benzécri, J.-P. et al.: L’Analyse des Données. II. L’Analyse des Correspondances. [Data Analysis. II. Correspondence Analysis]. Dunod, Paris (1973)
3. Benzécri, J.-P.: Correspondence Analysis Handbook. Marcel Dekker, New York, NY (1992)
4. Black, D.: On the rationale of group decision-making. J. Polit. Econ. 56(1), 23–34 (1948)
5. Boring, E.G.: A chart of the psychometric function. Am. J. Psychol. 28(4), 465–470 (1917)