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Credit: Cinémathèque française, conservatoire des techniques, Paris.
- Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
- Credit: Paolo Cherchi Usai. Source: Cherchi Usai, Paolo (2000): Silent Cinema. London: BFI.
- Credit: Illustration by Sarah Steinbacher, Multimedia & E-Learning-Services, University of Zurich. Source: Ede, François (1994): Jour de fête ou la couleur retrouvée. Cahiers du Cinéma: Paris.
- Credit: Cinémathèque française, conservatoire des techniques, Paris.
- Source: Gaumont, Léon (1959): Gaumont Chronochrome Process Described by the Inventor. In: Raymond Fielding (ed.): A Technological History of Motion Pictures and Television. An Anthology from the Pages of The Journal of the Society of Motion Picture and Television Engineers. Berkeley; Los Angeles: University of California Press, 1967, pp. 65-67.
- Source: Gaumont, Léon (1959): Gaumont Chronochrome Process Described by the Inventor. In: Raymond Fielding (ed.): A Technological History of Motion Pictures and Television. An Anthology from the Pages of The Journal of the Society of Motion Picture and Television Engineers. Berkeley; Los Angeles: University of California Press, 1967, pp. 65-67.