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
"Claessens, Stijn and Varangis, Panayotis N.","Oil price instability, hedging and an oil stabilization fund : the case of Venezuela",,"World Bank, International Economics Department, International Trade Division, and Europe and Central Asia/Middle East and North Africa Regions Technical Department, Finance and Private Sector Development Group",1994,Policy research working papers,,,,https://cir.nii.ac.jp/crid/1130000796230956032