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\bibitem{Sakai_etal2017} Sakai, S., Oset, E., \& Liang, W. H. (2017). Abnormal isospin violation and a(0) -- f(0) mixing in the D-s(+) -> pi(+) pi(0)a(0)(980)(f(0)(980)) reactions. \textit{Phys. Rev. D}, \textit{96}(7), 074025--11pp.

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