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\bibitem{ATLASCollaborationAad_etal2015} ATLAS Collaboration(Aad, G. et al), Cabrera Urban, S., Castillo Gimenez, V., Costa, M. J., Fernandez Martinez, P., Ferrer, A., et al. (2015). Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at root s=8 TeV. \textit{J. High Energy Phys.}, \textit{07}(7), 162--44pp.

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