"Doctorat Honoris Causa". Lettres Sorbonne Université (in French). 8 February 2017. Archived from the original on 26 March 2019. Retrieved 30 March 2019.
"Doctorat Honoris Causa". Lettres Sorbonne Université (in French). 8 February 2017. Archived from the original on 26 March 2019. Retrieved 30 March 2019.