http://skyscraperpage.com/diagrams/?cityID=2328
http://defense-92.fr/projets/hermitage-plaza-obtient-son-permis-de-construire-4698
http://defense-92.fr/justice/affaire-coeur-defense-la-societe-proprietaire-obtient-gain-de-cause-en-appel-4518
http://defense-92.fr/immobilier/total-pourrait-bien-quitter-la-defense-27372
https://en.wikipedia.org/wiki/%C3%8Ele-de-France
https://en.wikipedia.org/wiki/List_of_tallest_buildings_and_structures_in_the_Paris_region#Completed_structures
http://skyscraperpage.com/diagrams/?countryID=40&status=15
