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) ASGHARIZADEH E.,Modeling and analysis of maintenance service contracts,"Doctoral Thesis, The University of Queensland",,,1997,,,,https://cir.nii.ac.jp/crid/1571698601316379008,