Citation: Kl. Giraud et al., A comparison of willingness to pay estimation techniques from referendum questions - Application to endangered fish, ENVIRON R E, 20(4), 2001, pp. 331-346
Citation: Kl. Giraud et al., Internal and external scope in willingness-to-pay estimates for threatenedand endangered wildlife, J ENVIR MGM, 56(3), 1999, pp. 221-229
Citation: Kl. Giraud et al., Two valuation questions in one survey: is it a recipe for sequencing and instrument context effects?, APPL ECON, 31(8), 1999, pp. 957-964