Searching for cold gas traced by MgII quasar absorbers in massive X-ray-selected galaxy clusters A. Fresco, C. Péroux, A. Merloni, J. Comparat, R. Szakacs and S. Weng A&A, 684 (2024) A136 Published online: 16 April 2024 DOI: 10.1051/0004-6361/202346866