C. Gerretson, G. Puchinger, Verzamelde werken, I-VI, Puchinger, G., ed. BMGN-LCHR [Internet]. 1978 Jan. 1 [cited 2024 Jul. 2];93(2):353-4. Available from: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102217