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Subjects
Hungary -- History -- Revolution, 1956 -- Refugees
27
Hungary -- Emigration and immigration -- Interviews
19
Hungary -- History -- 1945-1989 -- Sources
19
Construction/Civil Engineering
9
Hungary -- History -- 1956 -1962 -- Sources
8
Civil defense
6
Engineering rescue services
6
Social issues
6
Daily news
4
Antichemical-protection service
3
Arts
2
Civil defense command
2
Contamination area
2
Metallurgy
2
NBC (nuclear, biological, chemical) special services
2
Railway
2
Reconnaissance unit
2
Sciences
2
Simulation
2
Agriculture
1