Sci-Hub Pirate Paper Portal
Have a DOI, PMID or URL for a paper you need to read? University library not a subscriber? Then Sci-Hub Open Access may come in handy...
Tag Open Access
CORE and FOAMres
CORE offers free access to millions of research papers and host the world’s largest collection of open access full texts. CORE is a not-for-profit service delivered by The Open University and Jisc