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
"久保田, 敬一 and Takayama, Tosinori and Ohno, Saburo",Econometric inferences of volatility and the hedge ratios under price limits : an extension of Wei's GMM,,Faculty of Economics,1998,Discussion paper,,,,https://cir.nii.ac.jp/crid/1130282272188080896