The Publications system stores references to publications. It does not store PDFs of publications.
The Publications system is appropriate for keeping track of the publications for a group, a project, an institute, a department, or similar.
A publication reference ('publication' in short) may contain:
Publications are added by providing DOIs or PMIDs (PubMed identifiers) which the Publications system then fetches the data for from the Crossref and/or PubMed web services.
For more information, see the links in the right-hand panel.