著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Iwatsubo,"Liquidity, volume and informational efficiency: evidence from high-frequency FX data",Asia-Pacific Economic Association. Beijing Conference Paper,,,2008,,,,https://cir.nii.ac.jp/crid/1370006895443912706,