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Scientific literature digital library and search engine.

Returns the title and source of an article along with a direct link from a citation.

European niche search engine for psychology.

A science search engine, which pulls data from scientific web sites.

Scientific search engine and online forum. Researchers and students can search the scientific literature and can freely and anonymously discuss and review research articles.

Semantic search engine for math and science expanding the searchable data space onto scientific notations, expressions, equations and formulas.

A search which uses multilateral partnerships to search national and international databases.