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2. Bret Hinsch. 1990. Passions of the Cut Sleeve: The Male Homosexual Tradition in China. UC Press, UK.
3. Andrew Hodges, ed. n.d.. Alan Turing's Trial, 1952: charges and sentences. Alan Turing: Primary Sources. https://www.turing.org.uk/sources/sentence.html
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5. A Generalization of Algebraic Surface Drawing