1. The smaller the better? A review of research on small rural schools in Sweden;Åberg-Bengtsson;International Journal of Educational Research,2009
2. Austrian Federal Ministry of Education and Women’s Affairs (2015). The Austrian Education System. Retrieved from January 22, 2015, from https://www.bmbf.gv.at/enfr/school/schools.html.
3. Qualitative data analysis with NVivo;Bazeley,2007
4. Toward a social pedagogy of classroom group work;Blatchford;International Journal of Educational Research,2003
5. Science education and teachers;Bruner,2006