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\bibitem{LHCbCollaborationAaij_etal2023} LHCb Collaboration(Aaij, R. et al), Jaimes Elles, S. J., Jashal, B. K., Martinez-Vidal, F., Oyanguren, A., Rebollo De Miguel, M., et al. (2023). Observation of a Resonant Structure near the Ds+Ds- Threshold in the B+ -> Ds+Ds- K+ Decay. \textit{Phys. Rev. Lett.}, \textit{131}(7), 071901--12pp.

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