1. Terrestrial Invaders,
http://www.ics.forth.gr/hci/ua-games/index_main.php?l=e&c=579
2. OneSwitch.org,
http://www.oneswitch.org.uk/4/games/0index.html
3. The AsTeRICS Project,
http://www.asterics.eu/
4. Ossmann, et al.: Bring the Users to the Games by the usage of the Assistive Technology Rapid Integration & Construction Set. In: 1st Workshop on Game Accessibility: Xtreme Interaction Design, Bordeaux, France, June 28 (2011)
5. USB Implementers’ Forum. Device Class Definition for Human Interface Devices (HID) (2001),
http://www.usb.org/developers/devclass_docs/HID1_11.pdf