@article{oai:barrel.repo.nii.ac.jp:00005469,
 author = {Ogasawara, Haruhiko},
 issue = {2/3},
 journal = {商学討究, The Economic Review},
 month = {Dec},
 pages = {1--8},
 title = {Supplement to the paper "Maximization of some types of information for unidentified item response models with guessing parameters"},
 volume = {72},
 year = {2021}
}