| http://www.w3.org/ns/prov#value | - The purges affected others too: ???Between 1934 and 1941, 450 aircraft designers and aircraft engineers were arrested, of whom 50 were executed and 100 died in prison or labour camps: the survivors, including A.N. Tupolev, former head of the Experimental Design section and chief engineer of the Chief Directorate of the Aircraft Industry, were obliged to work in NKVD workshops???. [169]
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