User talk:Violetriga/inprogress/List of tunnels underneath the Berlin Wall

http://www.independent.co.uk/news/world/europe/secret-tunnels-that-brought-freedom-from-berlins-wall-1804765.html http://www.dailysoft.com/berlinwall/history/escape.htm http://www.thelocal.de/national/20090812-21209.html