1. Fells L, Woolhouse L (1994) A response to the UK national program for CO2 emissions. Energy Policy 22:666–684
2. Hafkamp WA, Nijkamp P (1982) An integrated inter-regional model for pollution control. In: Lakshmanan TR, Nijkamp P (eds) Economic environmental interactions modeling and policy analysis. Martinus Nijhoff, Boston
3. Hannan EL (1981) Linear programming with multiple fuzzy goals. Fuzzy Sets Systems 6:235–248
4. Hsu GJY, Tzeng YZ (1989) A new concept for non-inferior set estimation of multi-objective programming: the CONWEIGHT alglorithm. In: Proceedings of the international conference on multiple criteria decision making: applications in industry and service, Bangkok, Thailand, pp 1039-1051
5. Hsu GJY, Tzeng YZ (1990) A new algorithm of fuzzy multi-objective programming: the compromise factor approach. In: Proceedings: the first international symposium on uncertainty modeling and analysis, Maryland University, College Pork, MD