1. ISO 9241-210. Ergonomics of Human-System Interaction – Part 210: Human-Centred Design for Interactive Systems, 2019. https://www.iso.org/obp/ui/en/#iso:std:iso:9241:-210:ed-2:v1:en.
2. Association for the International Accreditation of UX Professionals and Quality Assurance in the Professional Field of UX, Usability and Human-Centered Design (IAPUX). Focus Areas. https://ux-accreditation.org/focus-areas/.
3. German, UPA e.V., Working Group UX Strategy. https://germanupa.de/arbeitskreise/arbeitskreis-ux-strategie.
4. Norman, D. A. Design for a Better World: Meaningful, Sustainable, Humanity Centered; Cambridge, 2023.
5. Gaal, A.; Gillette, D.; Sadusky-Krantz, N.; Steward, S. In 18th Annual Conference on Computer Documentation. ipcc sigdoc 2000. Technology and Teamwork. Proceedings. IEEE Professional Communication Society International Professional Communication Conference and ACM Special Interest Group on Documentation Conference, 2000 Joint IEEE International Professional Communication Conference and 18th Annual Conference on Computer Documentation (IPCC/SIGDOC 2000), Cambridge, MA, USA, 24–27 Sept. 2000; IEEE, 2000; pp. 111–124.