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Subjects
Human rights
8
International cooperation
8
Science
4
Astronautics
3
Hungary -- History -- 1956 -1962 -- Sources
3
Hungary -- History -- Revolution, 1956 -- Refugees
3
Peace
3
World politics
3
Communication
2
Communism
2
Economic assistance
2
International Cooperation
2
International relations
2
Refugees
2
Science and state
2
Security, International
2
Technical assistance
2
Technology
2
Technology and state
2
Technology transfer
2