Metric analysis of ordinal data in psychology : models and numerical methods for metric analysis of conjoint ordinal data in psychology / Edwarda Elias Charles Iben RoskamQuasi-monotone decision trees for ordinal classification / R. Potharst, J.C. Bioch, R. van DordregtClassification trees for problems with monotonicity constraints / R. Potharst, A.J. FeeldersClassification trees for problems with monotonicity constraints / R. Potharst, A.J. FeeldersInduction of ordinal decision trees : an MCDA approach / Jan C. Bioch, Viara PopovaInduction of ordinal decision trees: an MCDA approach / Jan C. Bioch, Viara PopovaInteraction modelling under fuzzy circumstances : [paper presented at the 19th European congress of the Regional Science Association; London, August 1979] / Jan van Setten, J. H. VoogdMetric analysis of ordinal data in psychology : models and numerical methods for metric analysis for conjoint ordinal data in psychology / Edwarda Elias Charles Iben Roskam