Paris Opera (English Wikipedia)

Dickens, Charles (1883). Dickens's Dictionary of Paris, p. 221. London: Macmillan. Full view at Google Books.
Fontaine 2003, p. 23, says Duponchel and Pillet became co-directors on 1 June 1841 (without Monnais). On this date Monnais was appointed to a position as Royal Commissioner (Walton 1898, p. 294). Fontaine, perhaps in error, omits the 1 June 1840 co-directorship of Duponchel, Monnais, and Pillet.

doi.org (Global: 2^nd place; English: 2^nd place)

"Book Reviews: Napoléon et l'Opéra: La politique sur la scéne, 1810–1815 by David Chaillou." The English Historical Review 122 (496): 486–490 (2007). doi:10.1093/ehr/cem021.

Roslyn Sulcas (18 November 2020). "Running the Paris Opera Was Never Going to Be Easy. But Come On". The New York Times. Retrieved 16 April 2021.
Javier C. Hernández (25 May 2023). "Gustavo Dudamel, Star Maestro, to Resign From Paris Opera". The New York Times. Retrieved 25 May 2023.

Opéra national de Paris website, 2012–2013 season presentation Archived 8 August 2012 at the Wayback Machine (in French)
"Opéra national de Paris - Histoire de l'Opéra national de Paris". Archived from the original on 18 July 2011. Retrieved 25 March 2010. at the official website (in French). Retrieved 25 March 2010.
"Appointment of Music Director: Gustavo Dudamel" (Press release). Opéra national de Paris. 16 April 2021. Retrieved 16 April 2021.
"Appointment of Semyon Bychkov as Music Director of the Opéra national de Paris" (Press release). Opéra national de Paris. 6 January 2026. Retrieved 6 January 2026.
FAQ, Paris Opera website.

Company profile, Tous à l'Opéra 2012 press release Archived 3 March 2016 at the Wayback Machine pp. 52, 53 (in French)

Company profile, Tous à l'Opéra 2012 press release Archived 3 March 2016 at the Wayback Machine pp. 52, 53 (in French)
Opéra national de Paris website, 2012–2013 season presentation Archived 8 August 2012 at the Wayback Machine (in French)
"Opéra national de Paris - Histoire de l'Opéra national de Paris". Archived from the original on 18 July 2011. Retrieved 25 March 2010. at the official website (in French). Retrieved 25 March 2010.

"Bernard Stirn – Président du Conseil d'Administration de l'Opéra de Paris", interview by Édouard Brane with the President of the Board of the Opéra, Bernard Stirn [fr], 8 April 2011 (in French)