Version DOI Comment Publication Date
2 10.13012/B2IDB-9686195_V2 Updated dataset 2018-12-20
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update: {"nested_updated_at"=>[nil, Wed, 02 Jan 2019 16:36:07.383202000 UTC +00:00]} 2024-01-03T18:23:27Z
update: {"subject"=>["", "Technology and Engineering"]} 2019-01-02T16:36:07Z