@article{He2019, author = "Yinhong He and Ping Chen and Yong Li", title = "{Online_Appendix – Supplemental material for New Efficient and Practicable Adaptive Designs for Calibrating Items Online}", year = "2019", month = "1", url = "https://sage.figshare.com/articles/journal_contribution/Online_Appendix_Supplemental_material_for_New_Efficient_and_Practicable_Adaptive_Designs_for_Calibrating_Items_Online/7655294", doi = "10.25384/SAGE.7655294.v1" }