Waterkamp, Dietmar. “An Obituary for Götz Hillig (15 February 1938 – 6 June 2019), the Important Makarenko Researcher”. International Dialogues on Education Journal 6, no. 2 (November 12, 2019). Accessed November 24, 2024. https://idejournal.org/index.php/ide/article/view/67.