@article{oai:u-ryukyu.repo.nii.ac.jp:02002473,
 author = {当間, 清光 and Toma, Seiko and 當間, 清光},
 issue = {22},
 journal = {琉球大学経済研究},
 month = {},
 note = {紀要論文},
 pages = {47--69},
 title = {J.R.Hicks の“効率改善指数”について},
 year = {1981}
}