Version | DOI | Comment | Publication Date |
---|---|---|---|
1 | 10.13012/B2IDB-2308557_V1 | 2021-11-18 |
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update: {"nested_updated_at"=>[nil, Wed, 15 Jun 2022 17:38:20.391259000 UTC +00:00]} | 2024-01-03T18:23:49Z |
update: {"version_comment"=>[nil, ""], "subject"=>[nil, "Technology and Engineering"]} | 2022-06-15T17:38:20Z |