Fig. 2/3. URL: http://www.presenhuber.com/en/artists/AITKEN_DOUG/available-works/slideshow.79451731-9af5-47a4-9ed0-54eeb33bbc51.1.html (12.08.2013).
Source: Fig. 2/3. URL: http://www.presenhuber.com/en/artists/AITKEN_DOUG/available-works/slideshow.79451731-9af5-47a4-9ed0-54eeb33bbc51.1.html (12.08.2013).