Vincent Lamigeon, «The Serious Doubts of Arianespace on SpaceX’s Reusable Rocket,» Challenges, December 22, 2015, accessed October 22, 2017, https://www.challenges.fr/entreprise/aeronautique/le-lanceur-spatial-reutilisable-de-spacex-une-equation-economique-incertaine-pour-arianespace_30254.
