La Perle bleue de Sibérie s'altère
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| Main Author: | |
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| Format: | article biblioteca |
| Language: | fre |
| Subjects: | Lakes, Natural heritage, Environmental degradation, Cultural landscapes, Siberia, Lake Baikal, World Heritage List, |
| Online Access: | https://unesdoc.unesco.org/ark:/48223/pf0000113086_fre |
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