Unpaywall: Read Research Articles For Free
Unpaywall is a Chrome and Firefox browser extension that discovers and links to green open access manuscripts of published research and scholarly articles. Unpaywall taps into content from thousands of open-access repositories worldwide. It utilizes a number of data sources, including PubMed Central, the DOAJ, Crossref (particularly their license info),DataCite, Google Scholar,
Darren Chase
April 12, 2018