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\bibitem{ATLASCollaborationAad_etal2015} ATLAS Collaboration(Aad, G. et al), Alvarez Piqueras, D., Cabrera Urban, S., Castillo Gimenez, V., Costa, M. J., Fernandez Martinez, P., et al. (2015). Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at root s=8 TeV with the ATLAS detector. \textit{J. High Energy Phys.}, \textit{09}(9), 108--38pp.

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