@article {Aad:2015bfa,
	title = {{Measurement of the correlations between the polar angles of leptons from top quark decays in the helicity basis at $\sqrt{s}=7$TeV using the ATLAS detector}},
	journal = {Phys. Rev. D},
	volume = {93},
	number = {1},
	year = {2016},
	pages = {012002},
	doi = {10.1103/PhysRevD.93.012002},
	author = {Aad, Georges and others}
}
