PublicationYear (M)
The year when the data is made publicly available. If an embargo period has been in effect, use the date when the embargo period ends. (occurrences: 1)
Allowed values, examples, other constraints
Year in the form: YYYY
In the case of datasets, “publish” is understood to mean making the data available on a specific date to the community of researchers.
If there is no standard publication year value, use the date that would be preferred from a citation perspective.
Example
1<publicationYear>2019</publicationYear>