@article{oai:seijo.repo.nii.ac.jp:00005582,
 author = {OTSU, Takeshi},
 issue = {224},
 journal = {成城大學經濟研究, Seijo University economic papers},
 month = {Mar},
 note = {P(論文)},
 pages = {1--47},
 title = {Coincident Index and Reference Cycle},
 year = {2019}
}