1. Aitkin, M., & Aitkin, I. (2006). Investigation of the identifiability of the 3PL model in the NAEP 1986 math survey (Technical Report). Washington, DC: National Center for Educational Statistics.
2. Allman, E. S., Matias, C., & Rhodes, J. A. (2009). Identifiability of parameters in latent structure models with many observed variables. The Annals of Statistics, 37(6A), 3099–3132.
3. Baker, F. B., & Kim, S. H. (2004). Item response theory: Parameter estimation techniques. New York, NY: Marcel Dekker.
4. Barton, M.A. & Lord, F.M. (1981). An upper asymptote for the three-parameter logistic item-response model (Technical Report No. 80-20). Princeton, NJ: Educational Testing Service.
5. Chen, Y., Culpepper, S. A., & Liang, F. (2020). A sparse latent class model for cognitive diagnosis. Psychometrika, 85, 121–153.