"Open the barrier!" (Jäger, 1989)
Schnibben, C. (2009) The Guard Who Opened the Berlin Wall: 'I Gave my People the Order -- Raise the Barrier'. [online] http://www.spiegel.de/international/germany/0,1518,660128,00.html#ref=nlint
Archiv Zentrum für Ideas and Reflection.
"Open the barrier!" (Jäger, 1989)