@article{oai:ncu.repo.nii.ac.jp:00000439,
 author = {程島, 次郎 and 芦谷, 政浩},
 issue = {3-4},
 journal = {オイコノミカ},
 month = {Mar},
 pages = {1--17},
 title = {東証株価指数の時変ヘッジ比率の推定},
 volume = {39},
 year = {2003}
}