1. G. Swain and N. Swain, Eastern Europe since 1945 (London: Macmillan, 1993), pp. 6–7; M. Vajda, The State and Socialism, p. 123.
2. C. Milosz, The Captive Mind (London: Mercury, 1962), pp. x, 89–90;
3. Z. Mlynád, Night Frost in Prague: The End of Humane Socialism (London: Hurst, 1980), pp. 1–6.
4. R. Bideleux and I. Jeffries, A History of Eastern Europe (London: Routledge, 1998), pp. 435–40.
5. G. Roberts, The Soviet Union in World Politics: Coexistence, Revolution and Cold War, 1945–1991 (London: Routledge, 1999), pp. 18–19.