 darrell thanks lot quick question received invoice last model paper reviews please make sure billed clewlow strickland book shall send copy today vince darrell duffie 01 24 2001 03 17 01 pm please respond darrell duffie vince j kaminski enron com cc hoshino stanford edu subject vince taiichi case interested attach paper gas storage value modeling best darrell darrell duffie mail gsb stanford ca 94305 5015 usa phone 650 723 1976 fax 650 725 7979 email duffie stanford edu web http www stanford edu duffie paper 4 pdf