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Yokoyama, H. Chin Dokushū, 1983 t.p. (Chin Dokushū)
Chih, Y.J. Ch‘en Tu-hsiu nien p‘u (陳獨秀年譜), 1974 p. 1, 2nd group, etc. (b. Oct. 8, 1879, An-hui Huai-ning; orig. name Ch‘ien-sheng; chg. to Yu-chi, t. Chung-fu; often signed Ch‘en Chung ... sometimes Hsi-chou-chung-tzu; h. Tu-hsiu-shan-min, chg. to Tu-hsiu after 1913; later used pseud. Chih-yen, Shih-an, Sa-weng, Wan-shih, etc.; d. 5-27-1942, Ssu-ch‘uan Chiang-chin)
Huang, C.K. Ch‘en Tu-hsiu ssu hsiang chuan pien ... (陳獨秀思想轉變之初探), 1978 p. 1, 2nd group (Ch‘en Tu-hsiu; sometimes signed Shih-an, Chung-tzu, Yu-chi)