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\bibitem{Guo_etal2014} Guo, F. K., Hidalgo-Duque, C., Nieves, J., Ozpineci, A., \& Pavon Valderrama, M. (2014). Detecting the long-distance structure of the X(3872). \textit{Eur. Phys. J. C}, \textit{74}(5), 2885--10pp.

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