1. United Nations. Accessibility and Development: environmental accessibility and its implications for inclusive, sustainable and equitable development for all. Department of Economic and Social Affairs (2013). http://www.un.org/disabilities/documents/accessibility_and_development_june2013.pdf
2. Norwegian Ministry of Children and Equality. Action Plan: Norway universally designed by 2025, The Norwegian government’s action plan for universal design and increased accessibility 2009–2013 (2009). http://www.regjeringen.no/globalassets/upload/bld/nedsatt-funksjonsevne/norway-universally-designed-by-2025-web.pdf
3. Ministry of Children, Equality and Social Inclusion. LOV-2013-06-21-61, Lov om forbud mot diskriminering på grunn av nedsatt funksjonsevne (diskriminerings- og tilgjengelighetsloven) (2013). https://lovdata.no/dokument/NL/lov/2013-06-21-61
4. Norwegian Ministry of Government Administration, Reform and Church Affairs. FOR-2013-06-21-732, Forskrift om universell utforming av informasjons- og kommunikasjonsteknologiske (IKT) - løsninger (2013). https://lovdata.no/dokument/SF/forskrift/2013-06-21-732
5. Harder, S.K., Begnum M.E.N.: Promoting and obstructing factors for successful universal design. In: NOKOBIT 2016, vol. 24, no. 1. Open Journal Systems, Bergen, Norway (2016)