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\bibitem{Liang_etal2013} Liang, W. H., Xiao, C. W., \& Oset, E. (2013). Study of eta K(K)over-bar and eta {\textquoteright} K(K)over-bar with the fixed center approximation to Faddeev equations. \textit{Phys. Rev. D}, \textit{88}(11), 114024--10pp.

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