«Schiedmayer Celesta». Schiedmayer GmbH. Consultado el 3 de enero de 2016. Schiedmayer's website claims that it "... is today the only Celesta manufacturer worldwide": Schiedmayer is the only company manufacturing celestas according to the patent of A. Mustel and claims the instruments build by Yamaha are "keyboard glockenspiels". However, this claim is contradicted by Yamaha.
educalingo.com
«Celesta». Educalingo(en alemán). Consultado el 10 de diciembre de 2018.
«An Overview of Yamaha Celestas». Yamaha Corporation. Consultado el 3 de enero de 2016. Yamaha's website states that it has manufactured Celestas since 1992.
