<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/12/35/comics_dark_knight_returns_animation_still.jpg>
<http://www.digitalspy.com/comics/news/a408070/dark-knight-returns-actress-ariel-winter-honoured-to-voice-robin/>