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\bibitem{Debastiani_etal2017} Debastiani, V. R., Liang, W. H., Xie, J. J., \& Oset, E. (2017). Predictions for eta(c) -> eta pi(+)pi(-) producing f(0)(500), f(0)(980) and a(0)(980). \textit{Phys. Lett. B}, \textit{766}, 59--64.

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