@article{oai:doshisha.repo.nii.ac.jp:00015123,
 author = {Ueda, Masahiro and 上田, 雅弘},
 issue = {3},
 journal = {同志社商学, Doshisha Shogaku (The Doshisha Business Review)},
 month = {Oct},
 note = {研究, application/pdf},
 pages = {1--23},
 title = {DEA−Super Efficiencyモデルを用いた製紙業の合併と多角化の生産効率分析},
 volume = {61},
 year = {2009},
 yomi = {ウエダ, マサヒロ}
}