1. Adams R.A., Khoo S.T. (1993) QUEST [computer program]. Australian Council for Educational Research, Camberwell Victoria
2. Andersen E.B. (1973) Conditional inference for multiple-choice questionnaires. British Journal of Mathematical and Statistical Psychology 26:31–44
3. Andersen E.B. (1980) Discrete Statistical Models with Social Science Applications. North-Holland, Amsterdam
4. Andersen E.B. (1995a) Polytomous Rasch models and their estimation. In: Fischer G.H., Molenaar I. (ed) Rasch models. Foundations, Recent Developements, and Applications. Springer, Berlin Heidelberg New York, pp 271–291
5. Andersen E.B. (1995b) Residual analysis in the polytomous Rasch model. Psychometrika 60:375–393