Dolmans, D. H. J. M., Wolfhagen, I. H. A. P., Van Der Vleuten, C. P. M., & Wijnen, W. H. F. W. (2001). Solving problems with group work in problem-based learning: hold on to the philosophy. Medical Education, 35(9), 884-889. https://doi.org/10.1046/j.1365-2923.2001.00915.x

DOLMANS, Diana H J M, WOLFHAGEN, Ineke H A P, VAN DER VLEUTEN, Cees P M und WIJNEN, Wynand H F W, 2001. Solving problems with group work in problem-based learning: hold on to the philosophy. Medical Education. 1 September 2001. Vol. 35, no. 9, p. 884-889. DOI 10.1046/j.1365-2923.2001.00915.x.

Dolmans, D. H. J. M., I. H. A. P. Wolfhagen, C. P. M. Van Der Vleuten, und W. H. F. W. Wijnen. „Solving Problems With Group Work in Problem-Based Learning: Hold on to the Philosophy.“. Medical Education, Bd. 35, Nr. 9, September 2001, S. 884-9, https://doi.org/10.1046/j.1365-2923.2001.00915.x.

Dolmans, Diana H J M/Wolfhagen, Ineke H A P/Van Der Vleuten, Cees P M/Wijnen, Wynand H F W: Solving problems with group work in problem-based learning: hold on to the philosophy., Medical Education 2001, 884-889.

Dolmans, D.H.J.M., Wolfhagen, I.H.A.P., Van Der Vleuten, C.P.M. und Wijnen, W.H.F.W. (2001), „Solving problems with group work in problem-based learning: hold on to the philosophy.“, Medical Education, Vol. 35 No. 9, S. 884-889.