diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/electromagnetism-in-media/electromagnetic-waves-in-media/textbook.fr.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/electromagnetism-in-media/electromagnetic-waves-in-media/textbook.fr.md
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+++ b/01.curriculum/01.physics-chemistry-biology/04.Niv4/04.electromagnetism/electromagnetism-in-media/electromagnetic-waves-in-media/textbook.fr.md
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+---
+Title : Electromegnetic waves in media
+Published : true
+Visible : false
+---