著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Litterman, Robert B. and Goldman Sachs Asset Management. Quantitative Resources Group",Modern investment management : an equilibrium approach,,John Wiley,2003,Wiley finance series,,0471124109,,https://cir.nii.ac.jp/crid/1130000798171478144