M. Leszko and B. Bugajska, “Towards creating a comprehensive care system for elders: an overview of long-term systems across the developed countries”, ESGJ, vol. 10, no. 2, pp. 13–24, Dec. 2015, Accessed: Oct. 27, 2026. Available: https://ojs.wsb.edu.pl/index.php/bgs/article/view/707