Zotero

softwaredescription: 

Zotero is the only research tool that automatically senses content
in your web browser, allowing you to add it to your personal library with a single click.

Whether you're searching for a preprint on arXiv.org, a journal article from JSTOR, a news story
from the New York Times, or a book from your university
library catalog, Zotero has you covered with support for thousands of sites.

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