Original Technical Papers and Primary Sources
Limbacher (1969): Four Aspects of the Film. A History of the Development of Color, Sound, 3-D and Widescreen Films and Their Contribution to the Art of the Motion Picture. New York: Brussel & Brussel 1969, pp. 66-67.
Cornwell-Clyne, Adrian (1951): Colour Cinematography. London: Chapman & Hall, pp. 752-756.