@article {Aad:2019kiz,
	title = {{Search for heavy neutral leptons in decays of $W$ bosons produced in 13 TeV $pp$ collisions using prompt and displaced signatures with the ATLAS detector}},
	journal = {JHEP},
	volume = {10},
	year = {2019},
	pages = {265},
	doi = {10.1007/JHEP10(2019)265},
	author = {Aad, Georges and others}
}
