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Subjects
Science and state
8
Science
3
Research
2
Communism and science
1
Geologists
1
Intellectuals
1
Learning and scholarship
1
Plant geneticists
1
Plant genetics
1
Political purges
1
Vavilov, Nikolai Ivanovich, 1887-1943
1
Vernadskii, Vladimir Ivanovich, 1863-1945
1