@article{oai:surugadai.repo.nii.ac.jp:00002093,
 author = {大山, 明男},
 issue = {23},
 journal = {経済研究所所報},
 month = {},
 note = {P(論文)},
 pages = {1--2},
 title = {はしがき},
 year = {2020}
}