1. World Health Organization [WHO] (2002). Active Ageing. A Policy Framework, World Health Organization. Available online: https://apps.who.int/iris/bitstream/handle/10665/67215/WHO_NMH_NPH_02.8.pdf;jsessionid=30B9E6B9C57A8CF4A643AE76160D7DEE?sequence=1.
2. World Health Organization [WHO] (2015). World Report on Ageing and Health, World Health Organization. Available online: https://apps.who.int/iris/handle/10665/186463.
3. Eurostat (2023, February 14). Population on 1st January by Age, Sex and Type of Projection (Data Code: PROJ_19NP) [Data Set]. Available online: https://ec.europa.eu/eurostat/databrowser/view/PROJ_19NP__custom_4540833/default/table?lang=en.
4. Grześkowiak, A., Przybysz, K., Peternek, P., and Stanimir, A. (2021). Pokolenie 65+ Perspektywa Społeczno-Ekonomiczna, Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu.
5. Zhou, J., and Salvendy, G. (2017). Human Aspects of IT for the Aged Population. Aging, Design and User Experience, Springer.