@article{oai:tsukuba.repo.nii.ac.jp:00002763,
 author = {服部, 環 and Hattori, Tamaki},
 journal = {筑波大学心理学研究, Tsukuba Psychological Research},
 month = {Feb},
 pages = {79--86},
 title = {４母数ベータ事前分布を用いた項目母数推定法の多母集団への拡張},
 volume = {25},
 year = {2003}
}