Colored gold (English Wikipedia)

Cretu, Cristian; van der Lingen, Elma (December 1999). "Coloured gold alloys" (PDF). Gold Bulletin. 32 (4): 115–126. doi:10.1007/BF03214796. Archived from the original (PDF) on 2018-07-30.
Rapson, William S. (December 1990). "The metallurgy of the coloured carat gold alloys". Gold Bulletin. 23 (4): 125–133. doi:10.1007/BF03214713.
Mead, M. N. (2010). "Cadmium confusion: Do consumers need protection?". Environmental Health Perspectives. 118 (12): a528–34. doi:10.1289/ehp.118-a528. PMC 3002210. PMID 21123140.
Klotz, U. E. (2010). "Metallurgy and processing of coloured gold intermetallics — Part I: Properties and surface processing". Gold Bulletin. 43: 4–10. doi:10.1007/BF03214961.
ElKabbash, Mohamed; et al. (2017). "Tunable Black Gold: Controlling the Near-Field Coupling of Immobilized Au Nanoparticles Embedded in Mesoporous Silica Capsules". Advanced Optical Materials. 5 (21): 1700617. doi:10.1002/adom.201700617. S2CID 103781835.

freepatentsonline.com

US 6576187, Ribault, Laurent & LeMarchand, Annie, "For manufacturing jewels by the disposable wax casting technique; does not cause allergies", issued 2003

Woodrow Carpenter (June 1986). "Metals Suitable for Enameling". Glass on Metal Magazine. Archived from the original on 5 February 2017. Retrieved 17 November 2007.

"Jewellery Technology". World Gold Council. Archived from the original on March 3, 2006.

"Purple plague" Archived 2014-05-04 at the Wayback Machine. International Electrotechnical Commission Glossary

ElKabbash, Mohamed; et al. (2017). "Tunable Black Gold: Controlling the Near-Field Coupling of Immobilized Au Nanoparticles Embedded in Mesoporous Silica Capsules". Advanced Optical Materials. 5 (21): 1700617. doi:10.1002/adom.201700617. S2CID 103781835.

Cretu, Cristian; van der Lingen, Elma (December 1999). "Coloured gold alloys" (PDF). Gold Bulletin. 32 (4): 115–126. doi:10.1007/BF03214796. Archived from the original (PDF) on 2018-07-30.

Woodrow Carpenter (June 1986). "Metals Suitable for Enameling". Glass on Metal Magazine. Archived from the original on 5 February 2017. Retrieved 17 November 2007.
Cretu, Cristian; van der Lingen, Elma (December 1999). "Coloured gold alloys" (PDF). Gold Bulletin. 32 (4): 115–126. doi:10.1007/BF03214796. Archived from the original (PDF) on 2018-07-30.
"Purple plague" Archived 2014-05-04 at the Wayback Machine. International Electrotechnical Commission Glossary
"Jewellery Technology". World Gold Council. Archived from the original on March 3, 2006.