著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Antonio Estache and Atsushi Iimi,(Un)bundling infrastructure procurement: Evidence from water supply and sewage projects,Utilities Policy,0957-1787,Elsevier BV,2011-06,19,2,104-114,https://cir.nii.ac.jp/crid/1362262944861958528,https://doi.org/10.1016/j.jup.2010.12.003