1. ISO 9241-11 Ergonomic requirements for office work with visual display terminals (VDTs) – Part 11: Guidance on usability International Organization for Standardization, 1998, Switzerland.
2. What is usability;Bevan,1991
3. Human Factors; Guideline for Usability Evaluations of Telecommunication Systems and Services. ETR 095. DTR/HF-3001, ICS: 33.020, 33.040.40;ETSI,1993
4. The MUSiC performance measurement method;Macleod;Behav. Inf. Technol.,1997
5. What Is Telemedicine? A Collection of 104 Peer-Reviewed Perspectives and Theoretical Underpinnings