1. Distributed Augmented Reality for Collaborative Design Applications;Ahlers,1995
2. A Web-based Integrated Framework for Collaborative Product Design;Alexopoulos,2009
3. AndAR, http://code.google.com/p/andar/ (last accessed on 02.07.11).
4. Maintenance of Complex Machines in Electric Power Systems using Virtual Reality Techniques;Arendarski,2008
5. ARMES, http://www.armes-tech.com/(last accessed 30.06.11).