Hellinga W. In memoriam Dr. M.E. Kronenberg. BMGN-LCHR [Internet]. 1971 Jan. 1 [cited 2024 Apr. 20];86(1):152-3. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107757