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Front matter
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Article: Contribution à l'étude des terres rares et à quelques-unes de leurs propriétés optiques
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Front matter
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Chapter I: Contribution à l'étude des terres rares
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1
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Chapter II: Recherches sur la phosphorescence de quelques terres rares
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89
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Chapter : Résumé
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134
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Table of Contents
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137
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Table of Contents
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