arXiv
Open-access preprint repository for Mathematics, Physics, Computer Science and related fields.
arxiv.org
Further study
Research & academic search
Research repositories, journals, scholarly search and open academic literature.
6 resources
CORE
Aggregator of open-access research outputs from repositories and journals.
core.ac.uk
Directory of Open Access Journals
Searchable directory of peer-reviewed open-access journals.
doaj.org
Google Scholar
Academic search tool for scholarly literature, citations and research discovery.
scholar.google.com
Internet Archive Scholar
Search tool for scholarly materials preserved by the Internet Archive.
scholar.archive.org
JSTOR Open Content
Openly accessible journal articles, books and primary sources available through JSTOR.
jstor.org
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