Version | DOI | Comment | Publication Date |
---|---|---|---|
1 | 10.13012/B2IDB-5835198_V1 | 2017-12-14 |
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update: {"nested_updated_at"=>[nil, Fri, 14 Dec 2018 19:21:27.628533000 UTC +00:00]} | 2024-01-03T18:23:21Z |
update: {"version_comment"=>[nil, ""], "subject"=>[nil, "Technology and Engineering"]} | 2018-02-27T20:55:06Z |