Frey, A., & Seitz, N. - N..  (2010).  Multidimensionale adaptive Kompetenzdiagnostik: Ergebnisse zur Messeffizienz [Multidimensional adaptive testing of competencies: Results regarding measurement efficiency]. Zeitschrift für Pädagogik, 56, 40-51.

Frey, A., & Seitz, N. - N..  (2009).  Multidimensional adaptive testing in educational and psychological measurement: Current state and future challenges. Studies in Educational Evaluation, 35, 89-94.