1. Andersen, E. B. (1977). Sufficient statistics and latent trait models. Psychometrika, 42, 69–81.
2. Andersen, E. B. (1980). Discrete statistical models with social science applications. North Holland.
3. Anderson, J. A. (1984). Regression and ordered categorical variables. Journal of the Royal Statistical Society, Series B, 46, 1–30.
4. Andrich, D. (1978a). A rating formulation for ordered response categories. Psychometrika, 43(4), 561–574.
5. Andrich, D. (1978b). Relationships between the Thurstone and Rasch approaches to item scaling. Applied Psychological Measurement, 2(2), 449–460.