Version | DOI | Comment | Publication Date |
---|---|---|---|
1 | 10.13012/B2IDB-7239548_V1 | 2017-12-20 |
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update: {"nested_updated_at"=>[nil, Mon, 18 Dec 2023 17:23:35.800726000 UTC +00:00]} | 2024-01-03T18:23:20Z |
update: {"subject"=>[nil, "Technology and Engineering"]} | 2018-02-27T20:41:51Z |