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) Deutsche Bundesbank,The importance of trade credit for corporate financing in Germany – evidence from financial statement statistics,Mon. Rep.,,,2012,,2012,51,https://cir.nii.ac.jp/crid/1371695770201540364,