1. Lebenslanges Lernen im Beruf – seine Grundlegung im Kindes- und Jugendalter (Band I-V);Achtenhagen,2000
2. The relationship between efficacy and the instructional practices of special education teachers and consultants;Allinder;Teacher Education and Special Education,1994
3. Motivation. What teachers need to know;Ames;Teacher College Records,1990
4. 21st century skills and competences for new millennium learners in OECD countries;Ananiadou,2009
5. Learners for life: Student approaches to learning. Results from PISA 2000;Artelt,2003