Authors: Nijkamp, Peter Brouwer, Floor Hafkamp, Wim

Citation: Peter Nijkamp et al., Achievements in Modeling Environmental and Resource Issues, Ricerche economiche, (4), 1985, pp. 491

Authors: Nijkamp, Peter Brouwer, Floor

Citation: Peter Nijkamp et Floor Brouwer, Reduction Methods for Qualitative and Quantitative Data in Regional Analysis, Ricerca operativa, (25), 1983, pp. 3