"Entreprise SCI Titane à Antony (92160)" [Company SCI Titane in Antony (92160)]. Figaro Entreprises (in French). Société du Figaro. 17 December 2018. Retrieved 1 February 2019. "Ronald Zubar". BFM Business (in French). Retrieved 1 February 2019.
"Entreprise SCI Titane à Antony (92160)" [Company SCI Titane in Antony (92160)]. Figaro Entreprises (in French). Société du Figaro. 17 December 2018. Retrieved 1 February 2019. "Ronald Zubar". BFM Business (in French). Retrieved 1 February 2019.