Présentations de Sciences à l'Ecole et de Cosmos à l'Ecole

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Présentations de Sciences à l'Ecole et de Cosmos à l'Ecole, CERN (at CERN)

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CERN, as CERN states it.

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© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.

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