1
Alan B. Craig, Developing virtual reality applications, Morgan Kaufmann/Elsevier, Amsterdam, 2009.
2
Mel Slater, Anthony Steed, and Yiorgos Chrysanthou, Computer Graphics and Virtual Environments, Addison Wesley.
3
Mel Slater, Anthony Steed, and Yiorgos Chrysanthou, Computer Graphics and Virtual Environments, Addison Wesley.
4
3D user interfaces, Addison-Wesley, Boston, 2005.
5
Module Moodle Page, https://moodle.ucl.ac.uk/enrol/index.php?id=11233.