Dassonville, Aude; Cassini, Sandrine (23 September 2021). "L'Express réaffirme son ancrage libéral" [L'Express reaffirms its liberal roots]. Le Monde (in French). Archived from the original on 21 June 2023. Retrieved 21 June 2023.
Cressard, Armelle (16 May 2003). "L'Express a 50 ans" [L'Express is 50 years old]. Le Monde (in French). Archived from the original on 8 July 2023. Retrieved 8 July 2023.
"M. Raymond Aron dans l'Express: ..." [Mr Raymond Aron in l'Express: the affair had no need the statements of the President of the Republic]. Le Monde (in French). 13 November 1978. Archived from the original on 22 June 2023. Retrieved 22 June 2023.
Patri, Alexis (26 November 2020). "Christophe Barbier ..." [Christophe Barbier leaves L'Express after almost 25 years within the magazine]. Europe 1 (in French). Agence France-Presse. Archived from the original on 27 November 2022. Retrieved 22 June 2022. [Journalist and columnist]
Dassonville, Aude; Cassini, Sandrine (23 September 2021). "L'Express réaffirme son ancrage libéral" [L'Express reaffirms its liberal roots]. Le Monde (in French). Archived from the original on 21 June 2023. Retrieved 21 June 2023.
Cressard, Armelle (16 May 2003). "L'Express a 50 ans" [L'Express is 50 years old]. Le Monde (in French). Archived from the original on 8 July 2023. Retrieved 8 July 2023.
"M. Raymond Aron dans l'Express: ..." [Mr Raymond Aron in l'Express: the affair had no need the statements of the President of the Republic]. Le Monde (in French). 13 November 1978. Archived from the original on 22 June 2023. Retrieved 22 June 2023.
Patri, Alexis (26 November 2020). "Christophe Barbier ..." [Christophe Barbier leaves L'Express after almost 25 years within the magazine]. Europe 1 (in French). Agence France-Presse. Archived from the original on 27 November 2022. Retrieved 22 June 2022. [Journalist and columnist]