References
- In the new political situation the history of the Brandenburger Tor has attracted new attention. Das Brandenburger Tor. Geschichte eines deutschen Symbols by Michael S.Cullen was published in 1990 , Argon Verlag, Berlin and Das Brandenburger Tor, 1791–1991: eine Monographie, edited by Willmuth Arenhövel and Rolf Bothe , Verlag W Arenhövel , Berlin .
- The second part is based on the author's Arkitektur och ideologi i stalintidens Östeuropa. Ur det kalla krigets historia , Stockholm 1987 , Carlssons förlag; English version, 1992, Architecture and Ideology in Eastern Europe during the Stalin Era. An Aspect of Cold War History , The Architectural History Foundation , New York, NY , and MIT Press, Cambridge, MA, and London, England.