Ünlü, A.; Kasper, D.; Trendtel, M.; Schurig, M.
The OECD´s Programme for International Student Assessment (PISA) study: A review of its basic psychometric concepts
417-426
Data Analysis, Machine Learning and Knowledge Discovery
M. Spiliopoulou, L. Schmidt-Thieme, & R. Janning
Springer
2014