Hay, P. J., & Katsikitis, M. (2001). The ‘expert’ in problem-based and case-based learning: necessary or not?. Medical Education, 35(1), 22-26. https://doi.org/10.1046/j.1365-2923.2001.00679.x

HAY, Phillipa Jane und KATSIKITIS, Mary, 2001. The ‘expert’ in problem-based and case-based learning: necessary or not?. Medical Education. 1 Januar 2001. Vol. 35, no. 1, p. 22-26. DOI 10.1046/j.1365-2923.2001.00679.x.

Hay, P. J., und M. Katsikitis. „The ‘expert’ in Problem-Based and Case-Based Learning: Necessary or Not?“. Medical Education, Bd. 35, Nr. 1, Januar 2001, S. 22-26, https://doi.org/10.1046/j.1365-2923.2001.00679.x.

Hay, Phillipa Jane/Katsikitis, Mary: The ‘expert’ in problem-based and case-based learning: necessary or not?, Medical Education 2001, 22-26.

Hay, P.J. und Katsikitis, M. (2001), „The ‘expert’ in problem-based and case-based learning: necessary or not?“, Medical Education, Vol. 35 No. 1, S. 22-26.