↑ Karen Dawisha, "The 1968 Invasion of Czechoslovakia: Causes, Consequences, and Lessons for the Future" in Soviet-East European Dilemmas: Coercion, Competition, and Consent ed. Karen Dawisha and Philip Hanson (New York, NY: Homs and Meier Publishers Inc, 1981) 11
↑ Jiri Valenta, Soviet Intervention in Czechoslovakia, 1968: Anatomy of a Decision (Baltimore, MD: Johns Hopkins University Press, 1979) 3
↑ Stolarik, M. Mark (2010). The Prague Spring and the Warsaw Pact Invasion of Czechoslovakia, 1968: Forty Years Later. Bolchazy-Carducci Publishers. tr. 137–164. ISBN9780865167513.
