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The Soviet invasion of Czechoslovakia : its effects on Eastern Europe
Czerwiński, Edward J., (1972)
The diffusion of political innovation : from Eastern Europe to the Soviet Union
Gitelman, Zvi Y., (1972)
East Europe in flux
Korbonski, Andrzej, (1965)
KSČ a naše priatel'stvo a spojenectvo so ZSSR
Hrozienčik, Jozef, (1975)