1. Castells, M. (2009). The Rise of the Network Society, with a New Preface; Information Age Series; The Information Age: Economy, Society, and Culture Volume I, Wiley-Blackwell.
2. International Telecommunication Union (ITU) (2022, September 11). Measuring Digital Development: Facts and Figures 2020. Available online: https://www.itu.int/en/ITUD/Statistics/Documents/facts/FactsFigures2020.pdf.
3. World Health Organization (WHO) (2022, September 11). Ageing and Health, Available online: https://www.who.int/news-room/fact-sheets/detail/ageing-and-health.
4. World Health Organization (WHO) (2022, September 10). Global Report on Ageism, Available online: https://www.who.int/publications/i/item/9789240016866.
5. Digitalization to achieve sustainable development goals: Steps towards a Smart Green Planet;Mondejar;Sci. Total Environ.,2021