@article {Aaboud:2018jsj,
	title = {{Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector}},
	journal = {Phys. Rev. D},
	volume = {99},
	number = {5},
	year = {2019},
	pages = {052009},
	doi = {10.1103/PhysRevD.99.052009},
	author = {Aaboud, Morad and others}
}
