1. EU regions: how did people use the internet in 2021? https://ec.europa.eu/eurostat/web/products-eurostat-news/-/edn-20210517-1. Accessed 12 Mar 2023
2. The Center for Universal Design North Carolina State University: The Principles of Universal Design Poster (1997)
3. Penzenstadler, B., et al.: Safety, security, now sustainability: the nonfunctional requirement for the 21st century. IEEE Softw. 31(3), 40–47 (2014)
4. Becker, C., et al.: Requirements: the key to sustainability. IEEE Softw. 33(1), 56–65 (2016)
5. Gurumurthy, A.: Gender equality through ICT access and appropriation: taking a rights-based approach. IT for Change (2008)