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\bibitem{BABARCollaborationLees_etal2019} BABAR Collaboration(Lees, J. P. et al), Martinez-Vidal, F., \& Oyanguren, A. (2019). Observation of the Decay D-0 -> K- pi(+) e(+) e(-). \textit{Phys. Rev. Lett.}, \textit{122}(8), 081802--8pp.

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