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\bibitem{Amaldi_etal2010} Amaldi, U., Bonomi, R., Braccini, S., Crescenti, M., Degiovanni, A., Garlasche, M., et al. (2010). Accelerators for hadrontherapy: From Lawrence cyclotrons to linacs. \textit{Nucl. Instrum. Methods Phys. Res. A}, \textit{620}(2-3), 563--577.

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