Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TONE Kaoru,A Strange Case of the Cost and Allocative Efficiencies in DEA,日本オペレーションズ・リサーチ学会秋季研究発表会アブストラクト集,,The Operations Research Society of Japan,2002-09-11,2002,,184-185,https://cir.nii.ac.jp/crid/1570572702465906304,