Version | DOI | Comment | Publication Date |
---|---|---|---|
1 | 10.13012/B2IDB-9696589_V1 | 2017-10-10 |
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update: {"nested_updated_at"=>[nil, Wed, 12 Dec 2018 20:25:51.712321000 UTC +00:00]} | 2024-01-03T18:23:23Z |
update: {"subject"=>[nil, "Technology and Engineering"]} | 2018-02-09T16:18:34Z |
update: {"version_comment"=>[nil, ""]} | 2017-10-10T18:23:03Z |