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Amphibian observation and pond data (Aargau, Switzerland)
Education, culture and sport
In the canton of Aargau, hundreds of new ponds have been constructed since the 1990s to benefit declining amphibian populations. This dataset consists of monitoring data for all...
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Historical photographs from the album „A tire d’aile par le saint Gothard“ (a...
Population and society, Education, culture and sport, Regions and cities, Environment, Transport
The 60 photographs contained in the lavishly designed album „A tire d’aile par le saint Gothard“ takes viewers leafing through it on a picturesque journey from the heart of Swit...
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Photos of the Construction of the Hauenstein Base Tunnel
Population and society, Education, culture and sport, Transport, Economy and finance
The photographs in this collection were taken between 1912 and 1916 during the construction of the Hauenstein railway tunnel. They're part of the extensive photo archive of the ...
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