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\bibitem{Ros_etal2014} Ros, A., Lerche, C. W., Sebastia, A., Sanchez, F., \& Benlloch, J. M. (2014). Retroreflector arrays for better light collection efficiency of gamma-ray imaging detectors with continuous scintillation crystals without DOI misestimation. \textit{J. Instrum.}, \textit{9}, P04009--14pp.

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