Gan De-yi Dong Jun Xiao Lin Zeng Ming Fuzzy Real Options Method for Generation Investment Evaluation under Uncertainties. 164-167 2008 CSSE (1) http://dx.doi.org/10.1109/CSSE.2008.1504 conf/csse/2008-1 db/conf/csse/csse2008-1.html#De-yiJLM08