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\bibitem{PierreAugerCollaborationAbreu+Pastor2012} Pierre Auger Collaboration(Abreu, P. et al), \& Pastor, S. (2012). Description of atmospheric conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS). \textit{Astropart Phys.}, \textit{35}(9), 591--607.

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