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The following sources were used to gather reliable information on urban planning in communist countries.
Czaplicka, J., Gelazis, N. M., & Ruble, B. A. (Eds.). (2009). Cities after the fall of communism: reshaping cultural landscapes and European identity. Washington, D.C.: Woodrow Wilson Center Press.
Diener, A. C., & Hagen, J. (2013). From Socialist to Post-Socialist Cities: Narrating the Nation Through Urban Space. Nationalities Papers, 41(4), 487–514. https://doi.org/https://www.tandf.co.uk/journals/carfax/00905992.html
RUBENSTEIN, J. ., & UNGER, B. . (1992). Planning after the fall of Communism in Czechoslovakia (the Czech Republic). Focus (New York, N.Y. 1950), 42(4), 1–6.
Paul White. (1980). Urban Planning in Britain and the Soviet Union: A Comparative Analysis of Two Planning Systems. The Town Planning Review, 51(2), 211–226.
Morrison, J. (1956). Oxford Regional Economic Atlas: The U. S. S. R. and Eastern Europe. Prepared by the Economist Intelligence Unit and the Cartographic Department of the Clarendon Press. London: Oxford University Press, 1956. viii 134 pp. American Slavic and East European Review,15(4), 564-567. doi:10.2307/3001323
Em, P. P. (2018). Urbanization in North Korea: An outline of Its Peculiarities and an Estimation of Its Real Rate. North Korean Review, 14(2), 26–45. https://www.jstor.org/stable/26632404