Meynen, Daniel. “Sapere Aude. About the Contribution of Elderly People to Cultural Life”. Journal of Education Culture and Society 7, no. 1 (June 28, 2016): 11–17. Accessed May 8, 2025. https://www.ogrodynauk.pl/index.php/jecs/article/view/10.15503jecs20161.11-17.