1. Progress reports of the European Commission’s working groups Improving education of teachers and trainers and ICT in education and training (2003)
2. Ward, J.D., Lee, C.L.: A Review of Problem-based Learning. Journal of Family and Consumer Sciences Education 20(1), 16–26 (2002)
3. Jonassen, D.H., Hung, W.: Learning to Troubleshoot: A New Theory-Based Design Architecture. Educational Psychology Review 18(1) (2006)
4. Jonassen, D.H., Hernandez-Serrano, J.: Case-based reasoning and instructional design: Using stories to support problem solving. Educational Technology Research and Development 50(2), 65–77 (2002)
5. Stefanova, E., Sendova, E., Nikolova, I., Nikolova, N.: When I*Teach means I*Learn: developing and implementing an innovative methodology for building ICT-enhanced skills. In: Proceedings of the IFIP Conference Informatics, Mathematics, and ICT: a ‘golden triangle’ IMICT 2007. Northeastern University, Boston (2007)