Sources:
Eisenberg, Anne 2013, Seeking
a staredown with Google Glass, viewed 14 October 2013, <http://www.nytimes.com/2013/10/13/business/seeking-a-staredown-with-google-glass.html>
Glass: What does it do?,
viewed 11 October 2013, <http://www.google.com/glass/start/what-it-does/>
Google Glass,
viewed 11 October 2013, <http://en.wikipedia.org/wiki/Google_Glass>
Google Image Search via Advanced Search: Free to share, even
commercially search, viewed 14 October 2013, <http://et.wikipedia.org/wiki/Kasutaja:Sander92/Liitreaalsusega_prillid>
