Real socialism, better known as actually existing socialism or developed socialism (реальный социализм or развитой социализм), was an ideological catchphrase popularized during the Brezhnev era in the Eastern Bloc countries and the Soviet Union. The term referred to the Soviet-type economic planning implemented by the Eastern Bloc at that particular time. From the 1960s onward, countries such as Poland, East Germany, Hungary, Czechoslovakia, and Yugoslavia began to argue that their policies represented what was realistically feasible given their level of productivity, even if it did not conform to the Marxist concept of socialism. The concept of real socialism alluded to a future highly developed socialist system. The actual party claims of nomenclatory socialism began to acquire not only negative, but also sarcastic meanings. In later years and especially after the dissolution of the Soviet Union, the term began to be remembered as only one thing, i.e. as a reference for Soviet-style socialism.#tag:ref|See definitions and descriptions of "real socialism" in the following: Kyu-Young Lee, "System Transformation in Poland since 1989: A view on the transformation of the real-socialist system." Including List of References. Graduate School of International Studies, Sogang University. Krzysztof Brzechczyn, The Collapse of Real Socialism in Eastern Europe. Adam Mickiewicz University, Department of Philosophy. The Journal of Interdisciplinary Studies in History and Archaeology. Vol. 1, No. 2, pp. 105–133 Jacek Tittenbrun, The Collapse of 'Real Socialism` in Poland. Paul & Co Pub Consortium Robert W. Cox, "Real socialism" in historical perspective. Pages 177–183. Google Docs. Retrieved November 3, 2011. See term: "actually existing socialism" in Rudolph Bahro's The Alternative in Eastern Europe, Note 3, p. 190.|group=note After World War II, the terms "real socialism" or "really existing socialism" gradually became the predominating euphemisms used as self-description of the Eastern Bloc states' political and economical systems and their society models.