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2 Walter C. Clemens Jr, "North Korea’s Quest for Nuclear Weapons: New Historical Evidence" 동아시아연구원 10 (10): 127-154, 2010
3 Shen Zhihua, "Mao and the Sino-Soviet Partnership, 1945–1959: A New History" Lexington Books 2015
4 Shen Zhihua, "A Misunderstood Friendship: Mao Zedong, Kim Il-sung, and Sino-North Korean Relations, 1949–1976" Columbia University Press 2018