Deriving the Hubble constant using Planck and XMM-Newton observations of galaxy clusters Arpine Kozmanyan, Hervé Bourdin, Pasquale Mazzotta, Elena Rasia and Mauro Sereno A&A, 621 (2019) A34 Published online: 03 January 2019 DOI: 10.1051/0004-6361/201833879