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Source: *Huang, Xuelei (2014). Shanghai Filmmaking: Crossing Borders, Connecting to the Globe, 1922–1938. Leiden: Brill. ISBN978-90-04-27933-9. Quote: "After a long process of legal negotiations, they agreed to an out-of-court settlement. Since Gu Wuwei had secured protection from mafia boss Huang Jinrong 黃金榮 (1867–1953), Mingxing had to seek an equally strong protector—the Green Gang head Du Yuesheng 杜月笙 (1888–1951). With Du as intermediary, Mingxing gained a nominal victory at a heavy price: 100,000 Yuan for Du’s ‘protection’ and Gu Wuwei’s ‘losses.’"