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\bibitem{Barrientos_etal2021} Barrientos, L., Borja-Lloret, M., Etxebeste, A., Mu{\~n}oz, E., Oliver, J. F., Ros, A., et al. (2021). Performance evaluation of MACACO II Compton camera. \textit{Nucl. Instrum. Methods Phys. Res. A}, \textit{1014}, 165702--7pp.

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