Study of the optical to X-ray broad emission lines of Mrk 110 A. Juráňová, E. Costantini, L. Di Gesu, J. Ebrero, J. Kaastra, K. Korista, G. A. Kriss, M. Mehdipour, E. Piconcelli and D. Rogantini A&A, 681 (2024) A101 Published online: 23 January 2024 DOI: 10.1051/0004-6361/202348067