[OAI-implementers] Publication date and Datestamps

[Evelyn Cristina Pinto]

I noticed that the datestamp field is usually used for harvesting date,
but some repositories use it for submission date. Is the dc:date field
used for publication date and submission date too? How could I
differentiate them? Does anyone could give me more information about it?

Thanks,
Evelyn.

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master student in Computer Science at USP-Brazil