@article {Aaboud:2017lxm,
	title = {{Measurement of the production cross section of three isolated photons in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector}},
	journal = {Phys. Lett. B},
	volume = {781},
	year = {2018},
	pages = {55{\textendash}76},
	doi = {10.1016/j.physletb.2018.03.057},
	author = {Aaboud, Morad and others}
}
