Search for doubly charged Higgs boson production in multi-lepton final states using 139 fb - 1 of proton?proton collisions at ?s = 13 TeV with the ATLAS detector - Aad G; Abbott B; Abbott DC; Abeling K; Abidi SH; Aboulhorma A; Abramowicz H; Abreu H; Abulaiti Y; Hoffman ACA; Acharya BS; Achkar B; et al. (European Physical Journal c, 2023)