Aaboud, M., Aad, G., Abbott, B., Gürbüz, S., Istin, S., Özcan, V.E., “Search for a Heavy Higgs Boson Decaying Into a Z Boson and Another Heavy Higgs Boson in the llbb Final State in Pp Collisions at Root s=13 TeV with the ATLAS Detector“, Physics Letters B, 783, 392-414, 2018.