1. Atkin, R. (1974) “Mathematical Structure in Human Affairs” Heinemann Press. London, England.
2. Chamberlain, A. (1976) “A Study of Bechet’s Disease by Q-Analysis” Internationaljournal of Man-Machine Studies. Vol. 8:549–565.
3. Dimitras, A. Zopounidis, C. Hurson, Ch. (1995) “A Multicriteria Decision Aid Method for the Assessment of Business Failure Risk” Foundations of Computing and Decision Sciences. Vol. 20, No 2:99–112.
4. Duckstein, L. Opricovic, S. (1980) “Multiobjective Optimisation in River Basin Development.” Water Resources Research. Vol. 16:14–20.
5. Eder, G. (1993) “Multicriterion Q-Analysis of Danube Water Resource Projects” Department of Water Resource Management, Hydrology and Hydrological Engineering. Universitat fur Bodenkultur, Vienna, Austria.