1. Bevan, N., Macleod, M.: Usability measurement in context. Behaviour and Information Technology 13, 132–145 (1994)
2. Interaction Design Foundation: Context of use,
www.interaction-design.org/encyclopedia/context_of_use.html
3. ISO: Members,
www.iso.org/iso/home/about/iso_members.htm
4. ISO: TC159/SC4 Ergonomics of human-system interaction,
www.iso.org/iso/home/standards_development/list_of_iso_technical_committees/iso_technical_committee.htm?commid=53372
5. ISO 9241-11: Ergonomic requirements for office work with visual display terminals (VDTs) - Part 11 Guidance on usability (1998)