1. G. Eghigian, “Was There a Communist Psychiatry? Politics and East German Psychiatric Care, 1945–1989,” Harvard Review of Psychiatry 10, no. 6 (2002): 364.
2. R. Smith, The Fontana History of the Human Sciences (London: Fontana, 1997), p. 189.
3. J. Rothschild and N. Wingfield, Return to Diversity: A Political History of East Central Europe since World War II (Oxford: Oxford University Press, 2000);
4. R.J. Crampton, Eastern Europe in the Twentieth Century — and After (London: Routledge, 2005);
5. A. Brown, The Rise and Fall of Communism (London: HarperCollins, 2009);