“In 1906 John Henry Smith (1860–1917) and Waldemar Merckens commercially introduced a collodion paper impregnated with fugitive yellow, magenta, and cyan dyes. They called it Uto paper, after a range of mountains near Zurich (Johnson 1917: ...
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Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 209.
- Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, p. 211.
