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ckan_admin 建立了数据集Valley of the Shadow: two communities in the American Civil War 10年前

Valley of the Shadow: two communities in the American Civil War

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ECAI Clearinghouse

In the 1990's ECAI developed the ECAI Metadata Clearinghouse, a system for managing and cataloging spatio-temporal cultural data. ECAI's Metadata Clearinghouse includes records... 读取更多

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