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 "Malkamäki, Markku",Are there economies of scale in stock exchange activities?,,Bank of Finland,1999,Bank of Finland discussion papers,,9516866085,,https://cir.nii.ac.jp/crid/1130000798292795008