1. Allet, E.J. (1986). Environmental Impact Assessment and Decision Analysis, Journal of Operational Research Society, 37 (9): 901–910.
2. Asian Development Bank (1988). Guidelines for Integrated Regional Economic-Environmental Planning: A Review of Regional Environmental Development Studies in Asia, Asian Development Bank Environment Paper 3 (1).
3. Baird, I.A., J.R. Ive (1989). Using the LUPLAN Land-use Planning Package to Implement the Recreation Opportunity Spectrum Approach to Park Management Planning, Journal of environmental management, 29: 3.
4. Beinat, E. (1997). Value functions for environmental management, Kluwer, Dordrecht.
5. Beinat, E., P. Nijkamp, P. Rietveld (1994). Value functions for environmental pollutants: a technique for enhancing the assessment of expert judgments, Environmental Monitoring and Assessment, 30: 9–23.