Berlin Friedrichstraße station (English Wikipedia)

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chronik-der-mauer.de

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Jennings, Ken (21 May 2012). "Friedrichstrasse Station: The Cold War's Strangest Border". The Daily Traveler. Conde Nast Traveler. Archived from the original on 24 May 2012. Retrieved 5 June 2012.

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Wagner, Thomas. "Chapter 10". If it had not been for 15 minutes. Archived from the original on 3 March 2009.

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"Der VBB-Tarif: Aufteilung des Verbundgebietes in Tarifwaben und Tarifbereiche" (PDF). Verkehrsbetrieb Potsdam. Verkehrsverbund Berlin-Brandenburg. 1 January 2017. Archived from the original (PDF) on 27 October 2020. Retrieved 25 November 2019.
"Hauptbahnhof bewährt sich". Der Tagesspiegel (in German). 24 December 2006. Archived from the original on 27 February 2007.
Jennings, Ken (21 May 2012). "Friedrichstrasse Station: The Cold War's Strangest Border". The Daily Traveler. Conde Nast Traveler. Archived from the original on 24 May 2012. Retrieved 5 June 2012.
"U-Bahn-Chronik: Kriegsende in Berlin". Berliner-Untergrundbahn.de (in German). Archived from the original on 27 November 2014.
"Former border station Friedrichstrasse". Berlin.de (in German). Archived from the original on 13 November 2007.
"GRENZE - Bahnhof Friedrichstraße: Ein Museum der Erinnerungen". Chronicle of the Berlin Wall (in German). Archived from the original on 16 October 2007.
Schnedelbach, Lutz (22 July 2008). "Polizei nimmt ehemalige Terroristin fest". Berliner Zeitung (in German). Archived from the original on 6 September 2011.
Wagner, Thomas. "Chapter 10". If it had not been for 15 minutes. Archived from the original on 3 March 2009.
"Eine Hülle aus lila Klinkern". Berliner Zeitung (in German). 25 August 1998. Archived from the original on 5 December 2021.