3Barrows, H. S. : Problem - based Learning in Medicine and Beyond: A Brief Overview, in Wilkerson, LuAnn & Wire H. Gijselaers (eds.) (1996) : Bringing Problem- Based Learning to Higher Education: Theory and Practice, San Francisco: Jossey - Bass, New Directions for Teaching and Learning no. 68, pp. 3 - 12.
4Crosthwaite, C., Cameron, I., Lant, P., Litster, J. (2006): "Balancing Curriculum Processes and Content in a Project Centred Curriculum In Pursuit of Graduate Attributes", in: Education for Chemical Engineers, March 2006, Trans IChemE, Part D, no. 1, pp. 39 - 48 http://www. icheme. org/ECEsamplepaper. pdf
5Dochy, F., Segers, M., Van den Bossche, P., Gijbels, D. (2003): Effects of Problem- Based Learning: A Meta- Analysis, in: learning and Instruction, October 2003, vol. 13, no. 5, pp. 553 - 568.
6Du, X. Y. (2006) Bringing New Values in engineering education Gendered and Learning in PBL. PhD thesis submitted to Aalborg University, Denmark.
7Faland, B. & Frenay, M. (eds.) (2006): Problem and Project Based Learning in High Education: Impact, Issues, and Challenges,Louvain - la- Neuve: Presses Universitaires de Louvain.
8Graaff, E. de & Kolmos, A. (2003) Characteristics of Problem- based Learning, International Journal of Engineering Education, Vol. 19, No. 5, p657 - 662.
9Him, H. and Hippe, E. (1993) L? reing Gjennom Oplevelse, Foist? else og Handling: En Studiebok I Didaktikk. Oslo: University Publishing.
10Illeris, K. (1976). Problemorientering og dehagerstyring: opl? g til en altemative didaktik (Problem orientation and participation: draft for an alternative didactic). Munksgaard, Copenhagen.
