1. UN Convention of the Rights of Persons with Disabilities (2006) https://www.un.org/development/desa/disabilities/convention-on-the-rights-of-persons-with-disabilities/article-9-accessibility.html. Accessed 29 June 2021.
2. Directive (EU) 2016/2102 on the accessibility of the websites and mobile applications of public sector bodies (summary). https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=LEGISSUM%3A4314916. Accessed 20 December 2021.
3. European Commission, Directorate-General for Communications Networks, Content and Technology (2021a) eGovernment benchmark: method paper 2020–2023. Publications Office. https://data.europa.eu/doi/10.2759/640293
4. Directive (EU) 2016/2102 on the accessibility of the websites and mobile applications of public sector bodies (summary). https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=LEGISSUM%3A4314916. Accessed 20 December 2021
5. Web accessibility evaluation of topranking university Web sites in Spain, Chile and Mexico;MáñezCarvajal C;Universal Access in the Information Society,2021