found: His Catalogue raisonné de l'oeuvre gravée ... 1955.
found: Zhao Wuji hui hua liu shi nian hui gu, 1998: t.p. (Zhao Wuji; Zao Wou-ki [in rom.])
found: Zao Wou-ki, 2003: p. 221 (acquired French citizenship in 1964)
found: Zao Wou-ki, c2008: p. 37 (b. 1 Feb. 1920, Beijing; although the birth date commonly given for the artist is 13 Feb. 1921, due to the lack of precision in the registers of civil status in China the date of 1 Feb. 1920 should be substituted)
found: Bibliothèque nationale de France online authority record, Feb. 18, 2009 (hdg.: Zao, Wou-ki, 1920- ; b. Feb. 13, 1920, Beijing; painter, engraver, lithographer)
found: Le monde, Apr. 9, 2013 (Zao Wou-Ki; b. 1921; d. Apr. 9, 2013, at age 93, Switzerland)
Zao, Wou-ki, 1920-2013
