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WTA Estimates Using the Method of Paired Comparison: Tests of Robutness
Champ, P.A., (1998)
Simple Computational Methods for Measuring the Difference of Empirical Distributions: Application to Internal and External Scope Tests in Contingent Valuation
Poe, G.L., (2001)
Two valuation questions in one survey: Is it a receipe for sequencing and instrument context effects?
Giraud, K.L., (1999)