1Karl Mannheim: Ideology and Utopia: An Introduction to the Sociology of Knowledge (London:Routledge and Kegan Paul,1979),P136-1346
2Gyorgy Lukacs, "Contemporary Problems of Marxist Philosophy", in From Stalinism to Pluralism.. A Documentary History of Eastern Europe, (ed.) Gale Stokes (New York: Oxford University Press, 1991) ,P92.
