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\bibitem{LHCbCollaborationAaij_etal2013} LHCb Collaboration(Aaij, R. et al), Oyanguren, A., \& Ruiz Valls, P. (2013). Production of J/psi and Y mesons in pp collisions at root s=8 TeV. \textit{J. High Energy Phys.}, \textit{06}(6), 064--31pp.

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